IE63403B1 - Phosphorus-containing hmg-coa reductase inhibitors new intermediates and method - Google Patents

Description

The present invention provides intermediates·, for use in the preparation of phosphorus-containing compounds which inhibit the activity of 3-hydroxy-3-methylglutaryl-coenzyme A reductase and thus are useful in inhibiting cholesterol biosynthesis. Such compounds and hypocholesterolemic compositions containing such compounds are the Subject of our copending Irish Patent Application No. 1544/88.,(-Irish 2Q Patent Specification No. ).

F. M. Singer et al., Proc. Soc. Exner. Biol. Med., 102, 370 (1959) and F. H. Hulcher, Arch. Biocheau Bionhys., 146, 422 (1971) disclose that certain mevalonate derivatives inhibit the biosynthesis of cholesterol.

A I -2Endo et al in U. S. Patents Nos. 4,049,495, ’ 4,137,322 and 3,983,140 disclose a fermentation product which is active in the inhibition of '* cholesterol biosynthesis. This product is called compactin and was reported by Brown et al., (J. Chem. Soc. Perkin I. 1165 (1976)) to have a complex mevalonolactone structure.

G3 Patent 1 r536.152 discloses a group of synthetic compounds of the formula in which E represents a direct bond, a C1_3 alkylene bridge or a vinylene bridge and the various R's represent a variety of substituents.

The activity reported in the U.K. patent is less than 1% that of compactin.

U. S. Patent No. 4,375,475 to Willard et al discloses hypocholesterolemic and hypolipemic compounds having the structure Ξ R wherein A is Ξ or methyl; E is a direct bond, -CHg-, -CH2-CH2-, -CH2-CH2-C52- or -CH=CH-; R^ R2 and R3 are each selected from Ξ, halogen, C._4 alkyl, c1-4 haloalkyl, phenyl, phenyl substituted by halogen, <^_4 alkoxy, C2-Q alJcanoylo*Y, alkyl, or C1-4 haloalkyl, and 0R4 in which R4 is Ξ, C_ alkanoyl, benzoyl, phenyl, halophenyl, *o phenyl C1-3 alkyl, C1-g alkyl, cinnamyl, 01-Λ haloalkyl, allyl, cycloalkyl-C1-3-alkyl, adamantyl-C1-3-alkyl, or substituted phenyl C-_3-alkyl in each of which the substituents are selected from halogen, C^_4 alkoxy, alkyl, or C1_4_ haloalkyl; and the corresponding dihydroxy acids resulting from the hydrolytic opening of the lactone ring, and the pharmaceutically acceptable salts of said acids, and the C^_3 alkyl and phenyl, d-img-t-hyl amino or acetylamino substituted C1-3-alkyl esters of the dihydroxy acids; all of the compounds being the enantiomers having a 4 R configuration in the tetrahydropyran moiety of the trans racemate shown in the above formula.

PCT Patent Application hJO 84/02131 (PCT/EP83/0030B) filed in the name of 5andoz AG discloses heterocyclic analogs of mevalono lactone and derivatives thereof having the structure R. wherein one of R and R is o if10 other is primary or secondary alkyl, c3_6 cycloalkyl or phenyl-(CH2)-, wherein R4 is hydrogen, C1-4 alkyl, C^_4 alkoxy, (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, Rs is hydrogen, C1.3 alkyl, Cx_3 uko3ty; trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, RSa is hydrogen, c-j__2 alkyl, c1_2 alkoxy, fluoro or chloro, and m is 1, 2 or 3, with the provisos that both R^ and R3a must be hydrogen when R4 is hydrogen, RSa must be hydrogen when R5 is hydrogen, not more than one of R4 and R5 is tri fluoromethyl, not more than one of R4 and R- is phenoxy and not more than one of R4 and R5 is benzyloxy, R2 is. hydrogen, alkyl, ^3_6 cycloalkyl, C^-4 alkoxy (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R3 is hydrogen, alkyl, C1-3 alkoxy, tri fluoromethyl, fluoro, chloro, phenoxy or benzyloxy, with the provisos that R2 must be hydrogen when, R2 is hydrogen, not .more than one of R2 and R3 is tri fluoromethyl, not more than one of R2 and R3 is phenoxy, and not more than one of R2 and R3 is benzyloxy.

X is -(CH2)n- or -CH=CH- (n=0, l, 2 or 3), is -CH-CHι 2 OE C—CH_-COOH I 2 OH II wherein R, is hydrogen or C1-3 alkyl in free acid form or in the form of a physiologically hydrolysable and -acceptable ester or a δ lactone thereof or in salt form.

GB Patent Application 216217S discloses naphthyl analogues of mevalolactone useful as cholesterol biosynthesis inhibitors having the structure wherein Rx = 1-3C alkyl; Z is a gp. of formula or Z2: -CHCH_CHCH_COOR.

A 2A 2 OH OH (Z1) 2) R? = Ξ, a hydrolysable ester gp. or a cation. -6European Patent Application 164598 discloses preparation of lactones useful as anti-hypercholesterolemic agents by treating an amide with · an organic sulphonyl halide R5SO2X, then removing the protecting group Pr. wherein X = halo; Pr = a carbinol-protecting group; R1 = H or CH^; R3, R4 = H, 1-3C alkyl or phenyl-(1-3C alkyl), the phenyl being optionally substituted by 1-3C alkyl, 1-3C alkoxy or halo; R2 = a group of formula (A) or (3): - R6-C- or R6-CH ; I ' I I CH-7R6 = Η or OE; R = Ξ or CE3; a, b, c and d = optional double bonds; R = phenyl or benzyloxy, the ring in each case being optionally substituted by 1-3C alkyl or halo; R8, R9 = 1-3C alkyl or halo; R5 = 1-3C alkyl, phenyl or mono- or di-(l-3C alkyl)phenyl.

Anderson, Paul Leroy, German Patent Application 3-525.255 discloses naphthyl analogs of mevalonolactones of the structure i 17 wherein R is alkyl, Z = Q, Q ; R = Ξ, or a hydrolyzable ester group useful as inhibitors of cholesterol biosynthesis and in treatment of atherosclerosis.

PCT Patent Application WO 84/Q2SQ3 filed in the name of Sandoz AG discloses mevalono-lactone analogues useful as hypolipoproteinaemic agents having the structure '1 -8wherein the two groups Ro together form a radical of formula C or -(ch2)4wherein R2 is hydrogen, C1-4 alkyl, C1-4 alkoxy, (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R3 is hydrogen, c^_3 alkyl, alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, with the provisos that not more than one of R2 and R3 is trifluoromethyl, not more than one of R2 and R3 is phenoxy, and not more than one of R2 and R3 is benzyloxy, R^ is hydrogen, alkyl, fluoro, chloro or benzyloxy, R4 is hydrogen, c1-4 alkyl, c1-4 alkoxy, (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R5 is hydrogen, C1-3 alkyl, C1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, R5a is hydrogen, C1-2 alkyl, alkoxy, fluoro or chloro, and with the provisos that not more than one of R4 and Rs is trifluoromethyl, not more than one of R4 and Rs is phenoxy and not more than one of R4 and Rs is benzyloxy, X is (CH) \ / 2 <3 C = C ♦· -(CH_) v 2'q ft -9wherein n is 0, 1, 2 or 3 and one is 0 and the other is 1, Z is -CH-CH- —C-CH- -COOE I 2 ι Λ OH OH both q's are 0 or II wherein Rg is hydrogen or C1>>3 alkyl, with the general proviso that -X-Z and the R4 bearing phenyl group are ortho to each other; in free acid form or in the form of a physiologically-hydrolysable and acceptable ester or a δ lactone thereof or in salt form.

U. S. Patent No. 4,613,610 to Wareing (assigned to Sandoz) discloses a series of 7-pyrazolo-3,5-dihydrohept-6-enoic acid HMG-CoA reductase inhibitors of the structure wherein R, is Cn , alkyl not containing an 1—o asymmetric carbon atom, each of R2 and Rg is independently hydrogen, 0^_3alkyl, n-butyl, i-butyl, t-butyl, 10C1_3alkoxy/ n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, phenyl, phenoxy or benzyloxy, each of R3 and Rg is independently . hydrogen, c1-3alkyl, C1-3alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, each of R4 and R7 is independently hydrogen, C1_2alkyl, C1-2alkoxy, fluoro or chloro, with the provisos that not more than one of Rg and R^ is tri fluoromethyl, not more than one of R2 and R3 is phenoxy, not more than one of R2 and R^ is benzyloxy, not more than one of Rg and Rg is trifluoromethyl, not more than one of Rg and Rg is phenoxy, and not more than one of Rj and Rg is benzyloxy, X is "(CH2^m"' CH=cs"i -CH=CH-CH2- or -CH2-CH=CH-, wherein m is 0, 1, 2 or 3, and Z is ho CE-CH -C-CH--COOR. . ι 2 ι 2 11 OH OH / CH_ OH x A / -CH C I I \ or I I ho· O CH2 II o wherein R1Q is hydrogen or C^_3alkyl, and is hydrogen, R^2 or M, wherein R^2 is a physiologically acceptable and hydrolyzable ester group, andM is a cation, with the provisos that (i) the -X-z group is in the 4- or 5-position of the pyrazole ring, 11and (ii) the R^ group and the -X-Z group are ortho to each other.

PCT Pszent Application WO BB/07054 (Sanccz-Erfinoungen) discloses imioazole analogues of meualonol2ctone, useful for treating hyperlipoproteinaemia and atherosclerosis, which have the formula R^ = alkyl, cycloalkyl, adamantyl-1 or R^, RS' ^-substituted phenyl (gp. A); R2 = alkyl, cycloalkyl, adamantyl-1 or R7, Rg, Rg-suhstituted phenyl (gp. B); R3 = Ξ, alkyl, cycloalkyl, adamantyl-1, styryl or R1Q, R^, R^-substituted phenyl (gp, C); X = -(CH-) -, -CH=C3-, -CE=CH-CE_- or 2 m Z -CH2-CH=CH-; m — 0—3; Z = -CH(OH)-CH2-C(R13)(OE)-CH2-COOR14 (gp. a), -Q-CH2-C(R13)(OH)-CE2-COOR14 (gp. c) or a gp. of formula (b): -12CH. '2 c *4.3 CH. c II = CO or -C(OR2g)2-; R1S = primary or sec. alkyl; each R^5 being the same; or «u + ¾1 (=¾½ or (CHjJj; R_, = H or 1-3C alkyl; *14 = H, R16 or M; R16 = ester gp.; M = cation; provided that Z may be gp. (c) only when X is CH=CH or CH2-CH=CH and/or when R^3 = 1-3C alkyl; R4, R? and R1Q = 1-3C alkyl, η-, i- or t-butyl, 1-3C alkoxy, n- or i-butoxy, CF3, F, Cl, Br, phenyl, phenoxy or benzyloxy; Rg, Rg and R^ = H, 1-3C alkyl, 1-3C alkoxy, CF3, F, Cl, Br, COOR17, N(Rig)2, phenoxy or benzyloxy; R1? = H, R18 or M; R,o = 1-3C alkyl, n, i- or t-butyl or benzyl; Rlg = alkyl; Rg, Rg and R12 = H, 1-2C alkyl, 1-2C alkoxy, F or Cl; provided that (1) not more than one substituent of each of gps. A, B and C is CF3, not more than one substituent of each of gps. A, B and C is phenoxy, and not more than one substituent of each of gps, A, B and C is benzyloxy; (2) when Z is gp. (c; Q = C(OR15)2), the compound is in free base form and either (i) R^4 is R16 and each R^7 is independently R^g or (ii) Rg_4 is M and each is independently Rlg or M; and (3) when R14 and/or at least one R^ is M, the compound is in free base form.

Unless otherwise stated, all alkyl" group, are 1-6C and do not contain an asymmetric C; and cycloalkyl has 3-7C.

PCT Patent Application U0 86/034Θ8 (Sandoz AG) disclose indene analogues of meualolactone. useful as hypolipoproteinaemia and anti-atherosclerotic agents, in free acid form or in the form of an ester or delta-lactone or in salt form which have the formula R = H or primary or secondary 1-6C alkyl; R^ = primary or secondary 1-6C alkyl; or R + R. = (CH2)m or (Z)-CH2-CH=CH-CH2; -14m = 2-6; Rq = 1-6C alkyl, 3-7C cycloalkyl or R^, R^, Rg-substituted phenyl; ^2' R4 = H' ^4C alfcyl' 1-4C alkoxy (except t-butoxy), CF3, F, Cl, phenoxy or benzyloxy; R- and Rg = H, 1-3C alkyl, 1-3C alkoxy, CF3, F, Cl, phenoxy or benzyloxy; Rg = H, 1-2C alkyl, 1-2C alkoxy, F or Cl; provided that there may only be one each of CF3, phenoxy or benzyloxy on each of the phenyl and indene rings; X = (CS2)n or -(CHjJg-CH^iC^Jg-; n = 1-3; both q's = 0, or one is 0 and the other is 1; Z - -2-CH2-C(R10)(OH)-CH2COOH, in free acid form or in the form of an ester or delta-lactone or salt; Q = CO, -C(OR7)2- or CHOH; R'7s = the same primary or secondary 1-6C alkyl, or together are (C^^ or R10 = S or 1-3C alkyl; provided that Q may be other than CHOH only when X is CH=CH or CH2-CH=CH and/or R1Q is 1-3C alkyl.

U. S. Patent No. 4,647,576 to Hoefle et al (Warner Lambert) discloses new C- and N-substituted pyrrole(s), useful as hypolipidaemic and hypocholesterolaemic agents, which have the formula -1510 COOH (ID X = -CH2-z -CH2CH2- or -CHiCHg)CH2-; = 1- or 2-naphthyl; cyclohexyl; norbomenyl; phenyl optionally substituted hy F, Cl, OH, CF3, 1-4C alkyl, 1-4C alkoxy or 2-8C alkanoyloxy; 2-, 3- or 4-pyridinyl or their N-oxides; or e/R5.hal® N ·> »2-30 1-4C alkyl, 2-8C -CH2OCONER7; R = H or R5 = 1-4C alkyl; hal = chloride, bromide or iodide; = H, Cl, Br, CN, CFg, phenyl, carboalkoxy, -CH2OR& or 1-6C alkanoyl; 16= alkyl or phenyl optionally substituted by Cl, Br or 1-4C alkyl; or R2 and Rg together = -(CBg)^-, -CH2OCH2-, -CON(Rq)CO- or -CON(Rg )N(R1Q )CC-,η = 3 or 4; R8 = Ξ, 1-6C alkyl, phenyl or benzyl; Rg and R^ = H, 1-4C alkyl or benzyl; R4 = 1-4C alkyl, cyclopropyl, cyclobutyl or C?3· European Patent Application 221025 (Sandoz AG) discloses heterocyclic analogs of mevalonolactone and derivatives thereof having the formula wherein Ra is a group -X-Z, Rb is Rg, Rc is Rg, Rd is R4 and Y is a group -N- or Ra is Rx, Rb is a group -X-Z, Rc is R2, Rd is Rg and Y is 0, S or a group ; *4 R1, Rg, Rg and R4 independently are C1-4 alkyl not containing an asymmetric carbon atom, Cg_7cycloalkyl or a ring -1710 additionally hydrogen or in the case of R3 and R4 or for R3 when Y is O or S \ /"is /c = c\ R17 R19 whereby R1? is hydrogen or C1_3alkyl and Rlg and Rig are independently hydrogen, c-j.-3alkyl or phenyl; each Rg is independently hydrogen, C1-3alkyl, n-butyl, i-butyl, t-butyl, C^_3alkoxy, n-butoxy, i-butoxy, trifluoromethyl, fluoro, chloro, bromo, phenyl, phenoxy or benzyloxy; each R4 is independently hydrogen, C1_3alkyl, C^_3alkoxy, trifluoromethyl, fluoro, chloro, bromo, phenoxy or benzyloxy and each R7 is independently hydrogen, C^^^-kyl, C1_2alkoxy, fluoro or chloro with the proviso that there may only be one each of tri fluoromethyl, phenoxy or benzyloxy in each ring A present. X is (CH2)mor (CH_ ) _CH=CH( CH_ )_, m is 0, 1, 2 or 3 and both q's H 2 (J are 0 or one is 0 and the other is 1.

N Z is -CH-CH_-C-CH--COOH I 2 | x OB OH wherein Rg is hydrogen or C1-3alkyl, in free acid form or in the form of an ester of β-lactone thereof or in salt form as appropriate -18which compounds are indicated for use as hypolipoproteinemic and anti-atherosclerotic agents.

Tetrahedron Letters, 29, 929, 1988, discloses the synthesis of a 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor of the structure where R is Na or C235* European Parent Application 127848 (lAerok & Co, Inc.) discloses derivatives of 3-hydroxy-5thia-tu-aryl-alkanoic acids having the structural formula: Z wherein Z is: n is 0, 1 or 2 ; E is -CS.,-, -CH2-CH2-, -CZ^CZ^^-, -CH=CE-CH2-; or •CS^-CZ-CZ·; R^, Rg and Rg are, e.g., hydrogen, chloro, bromo, fluoro, C^-alkyl, phenyl, substituted phenyl or OR? in which R? is, e.g., hydrogen, C_ .alkanoyl, benzoyl, phenyl, substituted X · o phenyl, C1-oalkyl, cinnamyl, C1->4haloalkyl, allyl·, cycloalkyl-C1-3alkyl, adamantyl-C^g-alkyl, or phenyl C, alkyl; ς β R , R and R are hydrogen, chloro, bromo, fluoro or C^ g alkyl; and X is, e.g., hydrogen, C1-3 alkyl, a cation derived from an alkali metal or is ammonium.

Those compounds have antihypercholesterolemi activity by virtue of their ability to inhibit 3-hydroxy-3-me thylglutaryl-coenzyme A (HMG-CoA) reductase and antifungal activity.

French Patent Application 2,595.393 filed on April 1, 1986 (Sanofi SA) discloses 3-carboxy-2-hydroxy-propane-phosphonic acid derivatives including salts thereof which are useful as hypolipaemic agents and have the formula: wherein R^ and R2 = H, lower alkyl or optionally substituted aralkyl; R3 and R4 = H, lower alkyl or optionally substituted aryl or aralkyl.

These comounds are disclosed as giving greater reductions in cholesterol, triglyceride and phospholipid levels than meglutol.

European Patent Application 142146 (Merck & Co., Inc) discloses mevinolin-like compounds of the structural formula: HO wherein: R1 is, e.g., hydrogen or C^alkyl; E is -CH2CH2, -CH=CH-, or -(CH2)r-; and Z is 1) -21Ο 9 wherein X is -0- or -NR wherein R is hydrogen or C1_3alkyl; R7 is C- Qalkyl;-and a R is hydrogen or CH3; wherein R10, R11 and R12 are independently, e.g., hydrogen, halogen or c1_4alkyl; 3) -2214 wherein n is 0-2 and R is halo or alkyl; or 4) These compounds are BMG-CoA reductase inhibitors .

Copending Irish Patent Application No. 1544/88 (Irish Patent Specification No. ) provides phosphorus-containing compounds which inhibit the enzyme 3-hydroxy-3-methvlglutarylcoenzyme A reductase (HMG-CoA Reductase) and thus are useful as hypocholesterolemic agents and include the following moiety 6h II -P -C^ ~C°~ X I z wherein X is -(CH2)a-, -CH=CH-, -CsC- or -CH2O(where 0 is linked to Z), a*’ is 1, 2 or 3, and Z is an hydrophobic anchor.

The term hydrophobic anchor as employed herein refers to a lipophilic group which when * -2310 linked to the EMG-like upper side chain of the molecule by the appropriate linker (X"), binds to a hydrophobic pocket of the enzyme not utilized in binding the substrate HMG CoA, resulting in enhanced potency relative to compounds where Z=S.

In preferred g^bodiments , the compounds disclosed in the specification of Application No. 1544/88 (Irish Patent Specification No. ) have the formula I If X OH i wherein R is OH or lower alkoxy; Rx is H or lower alkyl; X is CH^ -CZ^CZ^, -CZ^C^CZ^, -CH=GH-z -C=C- or -CH^O- (where 0 is linked to Z); Z is a hydrophobic anchor; and including pharmaceutically acceptable salts thereof.

The terms salt’' and salts" refer to basic salts formed with inorganic and organic bases.

Such salts include ammonium salts, alkali metal salts like, lithium, sodium and potassium salts (which are preferred), alkaline earth metal salts like the calcium and magnesium salts, salts with organic bases, such as amine like salts, e.g., di cyclohexylamine salt, benzathine, N-methyl-Dglucamine, hydrabamine salts, salts with anrinn acids like arginine, lysine and the like. The nontoxic, pharmaceutically acceptable salts are preferred, although other salts are also useful, e.g., in isolating or purifying the product. * wherein the dotted lines bonds, for example, represent optional double wherein R1, R^, R^a and R^ may be the same or different and are each independently selected from H, halogen, lower alkyl, haloalkyl, phenyl, substituted phenyl or OR^ wherein R^ is H, alkanoyl, benzoyl, phenyl, halophenyl, phenyl-lower alkyl, lower alkyl, cinnamyl, haloalkyl, allyl, cycloalkyl-lower alkyl, adamantyl-lower alkyl or substi tuted phenyl-lower alkyl; = 5’ R~ and R are the same or different and are H, lower alkyl or OH; -280 Ο ·’ l‘ R is lower alkyl-C such as CHg-CHg-C-C-, CE^R7 or arylCHg-; R6a is lower alkyl, hydroxy, oxo or halogen; q is 0, 1, 2 or 3, and R7 is H or lower alkyl; -295 and the other is lower alkyl, cycloalkyl or phenyl-(CH-)-, p is 0, 1, 2, 3 or 4; " 13 wherein R is hydrogen, lower alkyl, lower alkoxy, (except t-butoxy), halogen, phenoxy or benzyloxy; R14 is hydrogen, lower alkyl, lower alkoxy, halogen, phenoxy or benzyloxy; R14a is hydrogen, lower alkyl, lower alkoxy, or halogen; and i4a with the provisos that both R and S* must be hydrogen when R13 is hydrogen, R14a must be hydrogen when R is hydrogen, not more than one of R and is trifluoromethyl, not more than one of R^3 and -R"4 is phenoxy and not more than one of R*3 14 and R is benzyloxy; R8 is hydrogen,. C1-4 alkyl, C3_6 cycloalkyl, C1-4 alkoxy (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy; R9 is hydrogen, C1-3 alkyl, C1-3 alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy, with the provisos that R must be hydrogen when R is hydrogen, not more than one 8 Q of R and R is tri fluoromethyl, not more than Jr 308 9 · one of R and R is phenoxy, and not more than Q one of R and R* is benzyloxy.

R10 and R11 are independently selected from hydrogen, alkyl, cycloalkyl, adamantyl-1 or q = 0, 1, 2. 3 or 4; Y is 0, S or N-R10; R3, is H or primary or secondary c. - alkyl; R is primary or secondary c alkyl; ah ' or R + R is (CHgJj. or (cis)-CH2-CH=CH-CE2; r = 2, 3, 4, 5 or 6; τί 3112 R is lower alkyl, cycloalkyl or and are both H, Cl, Br, CN, CF , oher.yi, ±7 C. , alkyl, C_ , alkoxycarbonyl, -CH-OR or -C^OCOMHR13; Z 17 R is H or c„ c alkanoyl; 18 19 * R is alkyl or phenyl optionally substituted by F, Cl, Br or C1-4 alkyl; or R15 and R16 taken together are -(CH-) 2i Z S -CH^C^-, -CON(RX;CO-, or -CON(R^)N(R^)CO-; -32S = 3 or 4; R19 = 3, CL_6 alkyl, phenyl or benzyl? R20 and R22 are H, alkyl or benzyl; with the added proviso that when Z is 5 X can only be -CE^-, -CE^CH^- or -CE^CE^CE^; -3322 R is lower alkyl, cycloalkyl, adamantyl-1 t = 1, 2, 3 or 4; 23a R and R are the same or different and are each independently selected from hydrogen, lower alkyl, lower alkoxyl (except t-butoxy), halogen, phenoxy or benzyloxy; and 23a with the provisos that R must be hydrogen when R is hydrogen, not more than one 23a of R and R is trifluoromethyl, not more than 23a one of R and R is phenoxy, and not more than one of R23 and R23a is benzyloxy ; where X is -CHgO- (carbon attached to P and attached to Z), the hydrophobic anchor Z is -34Thus, the compounds of formula O II _ _ x la R-P-CH2-CS-CH2-CO2R C OH , III C I Z encompass Ih R-P-CH2-^H-CH2-CO2R; CH OH II CH (cis) Z II Ic R-P-CH--CH-CH--CO-R‘ I Z s Ζ Z CH OH II CH (trans) Z O 1« Id R-P-CH--CH-CH--CO-R' I 2 ; Ζ Z CH- OH I 2 CHI 2 Z i Ο ll _ _ ν Ie R-?-CE--CE-CE_-CO-RA I 2 = 2 2 CE- OH I 2 Z If R-?-CE--CH-CE--CO-RX I 2 = 2 2 (fH2)3 OE Z Ig R-?-CE--CE-CE--CO-RX / | Z a Z Z CE- OH ι ± Z The term lower alkyl or alkyl as employed herein alone or as part of another group refers to both straight and branched chain hydrocarbons, containing 1 to 12 carbons in the normal chain, preferably 1 to 7 carbons, such as methyl, ethyl, propyl, isopropyl, butyl, t-butyl, isobutyl, pentyl, hexyl, isohexyl, heptyl, 4,4-dimethylpentyl, octyl, 2,2,4-trimethylpentyl, nonyl, decyl, undecyl, dodecyl, the various branched chain isomers thereof, and the like as well as such groups including a halo-substituent, such as F, Br, Cl or I or CF3, an alkoxy substituent, an aryl substituent, an alkyl-aryl substituent, a haloaryl substituent, a cycloalkyl substituent, an alkyl30 cycloalkyl substituent, hydroxy, and alkylamino substituent, an alkanoylamino substituent, an arylcarbonylamino substituent, a nitro substituent, a -36cyano substituent, a thiol substituent or an alkylthio substituent.

The term cycloalkyl as employed herein alone or as part of another group refers to saturated cyclic hydrocarbon groups containing 3 to 12 carbons, preferably 3 to 8 carbons, which include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, cyclodecyl and cyclododecyl, any of which groups may be substituted with 1 or 2 halogens, 1 or 2 lower alkyl groups, 1 or 2 lower alkoxy groups, 1 or 2 hydroxy groups, 1 or 2 alkylamino groups, 1 or 2 alkanoylamino groups, 1 or 2 arylcarbonylamino groups, 1 or 2 amino groups, 1 or 2 nitro groups, 1 or 2 cyano groups, 1 or 2 thiol groups, and/or 1 or 2 alkylthio groups.

The term aryl or Ar as employed herein refers to monocyclic or bicyclic aromatic groups containing from 6 to 10 carbons in the ring portion, such as phenyl, naphthyl, substituted phenyl or substituted naphthyl wherein the substituent on either the phenyl or naphthyl may be 1, 2 or 3 lower alkyl groups, halogens (Cl, Br or F), 1, 2 or 3 lower alkoxy groups, 1, 2 or 3 hydroxy groups, 1, 2 or 3 phenyl groups, 1, 2 or 3 alkanoyloxy group, 1, 2 or 3 benzoyloxy groups, 1, or 3 haloalkyl groups, 1, 2 or 3 halophenyl groups, 1, 2 or 3 allyl groups, 1, 2 or 3 cycloalkylalkyl groups, 1, 2 or 3 adamantylalkyl groups, 1, 2 or 3 alkylamino groups, 1, 2 or 3 alkanoylamino groups, 1, 2 or 3 arylcarbonylamino groups, 1, 2 or 3 amino groups, 1, 2 or 3 nitro groups, 1, or 3 cyano groups, 1, 2 or 3 thiol groups, and/or -371, 2 or 3 alkylthio groups with the aryl group preferably containing 3 substituents.

The term aralkyl", aryl-alkyl" or aryl-lower alkyl as used herein alone or as part of another group refers to lower alkyl groups as discussed above having an aryl substituent, such as benzyl.

The term lower alkoxy, alkoxy, or aryloxy or aralkoxy as employed herein alone or as part of another group refers to any of the above lower alkyl, alkyl, aralkyl or aryl groups linked to an oxygen atom.

The term lower alkylthio, alkylthio, arylthio or aralkylthio as employed herein alone or as part of another group refers to any of the above lower alkyl, alkyl, aralkyl or aryl groups linked to a sulfur atom.

The term lower alkylamino, alkylamino, arylamino, arylalkylamino as employed herein alone or as part of another group refers to any of the above lower alkyl, alkyl, aryl or arylalkyl groups linked to a nitrogen atom.

The term alkanoyl as used herein as part: of another group refers to lower alkyl linked to a carbonyl group.

The term halogen or halo as used herein refers to chlorine, bromine, fluorine, iodine and CF^, with chlorine or fluorine being preferred.

Preferred are those compounds of formula I 30 which have the following structure 38IX R 0 CH- Η . CH\ »» / 2 \ ' X 2 P c ι r x r z oh -co2rS wherein R is OE, OLi or CE^O; R* is Li or Ξ; X is -CH2-, ·Ζ3.2Ζ3.2~, -CH2CH2CH2, -CH=CH-, -C=C- or -CH2O-; and Z is wherein R2 is phenyl or phenyl which includes an alkyl and/or halo substi tutent, R2 is cycloalkylalkyl such as cyclohexylmethyl, or R2 is benzyloxy which includes a halo substituent; R2 ar halogen or lower alkyl; Z may also preferably be 2a R and R are the same and are hydrogen, 2 wherein R and R are as defined immediately above with respect to the compound of formula II; Z may be also preferably be 392 wherein R is substituted phenyl, lower alkyl, A cycloalkyl or phenylalkyl and R is substituted phenyl, lower alkyl, such as isopropyl, cycloalkyl or phenylalkyl; or or OE and R is wherein R is H, C5L 0 f or (substituted )pheny lmethyl CE_ R' wherein R7 is Ξ or CH-.

Z may also preferably be 4 wherein at least one of R and R are phenyl or 3 4 substituted phenyl and the remaining R or R* is lower alkyl.

The compounds of formula I may be prepared according to the following reaction sequence and description thereof.

Reaction Sequence A. Preparation of Compounds of Formula I where X is -01=01- f6H5 OSl-C(CII,), 1 < 33 1 C65 P(Oalkyl)3 0 III alkylO-P-CII2-CII-CII2-CO2alkyl I-CII2-CII-CII2-CO2alkyl Δ * Oalkyl Ssi-c(CII3) 3 Reaction \ C6n5 C6H5 A Arbuzov 1. (C1L)-SiBr, IV3· «2° ch2ci2 IV o H ιιο-ρ-αι9-ςιι-αι9-οο alkyl θΙΙ · alkanol-DCC 1 \ Phosphorus ester cleavage z Si-C(CIK) 7 / \ pyridine C6H5 C6H5 V alkylO-V-CH2-GII-CH2C02alky 1 011 0 I Si-C(CIK), / \ 33 VI r VI CHO I Z VIII 1. 2.

CBr (CII3) 3SiN (C2H5 > 2 (TMSNEt2) (COC1)2I CII2C12 (Acid Cl Formation) Ph3P 4* Wittig CH-CBr~ I 2 Z IX n alkylO-P-CIK-CII-CH-CO-alkyl I 2 « 2 2 Cl O Si-C(CH,) Dehydrohalogenation -> 1) n-BuLi 2) ll2O 1) Li anion formation .(n-BuLi, THF) 2) Condensation with phosphonochloridate VII ---> 3' 3 C6H5 C6H5 VII CSCII I Z ι H* I alky lO-P-Cll2-CH-CII2-CO2alkyl * 0 I , Si-C(CIK) , X \ CSC I z C6H5 C6,*5 XI 1) Sllyl ether cleavage (n-C^Hg) 4NF, CII3COOII, THF 2) Hydrolysis (LiOH, dioxane) O ii HO- P-CH--CH-CH-CO-I! | 2 » 2 2 C OH III XI Selective reduction —-> ll2, 10% Pd-C MeOH, 1 atm IA alky lO-P-CII2-CII-CII2CO2alky 1 , CI1 Z-CI1 (cis) O I Si-C(CI!,) , X \ 33 1) 2) Sllyl ether cleavage Hydrolysis C6H5 C6H5 ι x.

M I XII o II HO-j>-CII2-£H-CH2-CO2ll . CH OH // Z-CII (cis) IB Reduction XII = ) ll2, 10% Pd-C MeOII, 50 psi O II alkylO-P-CH~-CH-CH-COalkyl .. . 1 ι 2s 2 2 1 1) Silyl ether cleavage 2) Hydrolysis -> Z ^6**5 65 / CII.

I 2 lix \ C(CII3) 3 XIII o II IIO-P-CII.

I /2 c.i2 z CH-CII-CO.H 2 2 2 Oil I GJ I ID Reaction Sequence B. Preparation of compounds I where X linkage (-Cll=CH-) is trans, that is O il ΪΙΟ-Ρ- CH--CII-CH_CO_II 1 2 =. 2 2XCH oil // CH 1 z (trans) IC Hydrostannation Sn (n-C^llg) 3 Z I 1 Iodination .CH // 1) n-C4HgLi (Meta1lation) (n-C4ll9)3Snll CII 1 I„, Eto0 CH 2 2 X i 2) VII AIBN, 120°C 2 -2 (Condensation) XV XVI ο II AlkylO-P-CH2 I CII — CII-CII2CO2alky 1 OSi-C(CHJΊ II (trans) 1. ) silyl ether cleavage 2. ) LiOIl, Dioxane (Hydrolysis) XVII II HO-|-CI12-CH-CH2CO2H CH ι tn I CII OH (trans) IC I Reaction Sequence C. Alternative Preparation of Compound I where X linkage <—CII=CII—) is trans, that is, compound IC Clio I z VIII Condensation LiCH2l (Oalkyl)2 THF, -78°C HO ^(Oalkyl)2XCH-CIII 2 Z XX lip Elimination p-TsOH benzene, ii P-(Oalkyl)2 Z" :il (trans) XXI XXI Hydrolysis aqueous LiOIl -> dioxane 1' · alky IQ-P-OH ^CH C*1 (trans) Z Acid Cl formation 1. (Cll3) 3SiN(C2II5> 2 (TMSNEtp 2. (COC1)2, Cat. DMF ch2ci2 o alkylo-l’-Cl /" CII .. .

I (trans) Z XXIII XXII XXIII O II Condensation C»2 THF, OH I Ο I C. Ο ο ι· ιι a Iky lO-P-CH2-C-CII2-CO2alky 1 CII -78°C "Oalkyl -> // CH I Z CII XXIV Reduction NaBIl, c2ii5oii alky 1O-P-CH--CII-C1I-CO .alkyl | 4 . & Z CH Hydrolysis on O OH II I ho-p-ch2-cii-ch co2h' III CII I z Z' dioxane C1I I z IC IC Reaction Sequence D Preparation of Compounds of Formula I where X is -CH--, -CII2CII2- or -CH2CH2CH2- Cl 1 o II CHO 1 . 'fH2»a (Alky10),P P(Oalkyl)9 z HI x 1. oh L Z A - VIII (a is 1, 2 or 3) Δ 2. / TMSNEt2 XXV XXVI 3. (COC1)2, Cat. DMF (Acid Chloride Formation) θ θ II ι I AlkylO-j>-Cl »2»a z CH.

CH Oalkyl u alkylO-l^-CH--C-CH--CO„alkyl I 2 |l 2 2 2>a θ Z Reduction NaBH, XXVII coupling THF, -78°C c2ii5oii XXVIII 011 ll I alky 10-P-CII2-CH-CH2C02a Iky 1 a Z ID1 (a=2) IE1 (a=l) IF1 (a=3) O OH I| I Hydrolysis HO-P-CH2-CH-CH2CO2H (CII -) aqueous OH , 2 a Z ID (a=2) IE (a=l) IF (a=3) Reaction Sequence ε. Preparation of Compounds of Formula I where X is -CH2OCHO l Z Baeyer-Villiger Oxidation (MCPBA) Base Hydrolysis OH I z Alkylation TsO-CH2-PO(Oalkyl)2 XXX VIII XXIX Base PO(Oalkyl)2 /»2 Hydrolysis aqueous LiOH -> dioxane II alkylO-P-OH /»2 I z Acid Cl formation 1) TMSNEt2 2) (C0C1)Cat. DMF, CHC12 -OSXXXI XXXII ο II alkyl-O-y-Cl /»2 ? Ζ XXXIII Condensation ?θ ϊθ / \ S \ Cll2 CII oalkyl THF, -78°C O II alkylO-^-CH2-C-CH2CO2alkyl Reduction NaBIl, OH H L alkylO-|-CH2"CH-CH2CO2alkyl CH. / 2 IG Z2 c2iisoii XXXIV Hydrolysis OH~ dioxane ft ? HO-i-CH2-CH-CH2CO2H /Ch2 ? z 51I 52As seen in the above Reaction Sequence "A, compounds of Formula I may be prepared by subjecting iodide A to an Arbuzov reaction by heating iodide A I-CH2-C-CH2-COgalkyl and phosphite III III P(Oalkyl)3 employing standard Arbuzov conditions and procedures to form the phosphonate IV IV alkylO- ~~ m m ™ alkyl II (a novel intermediate) Phosphonate IV is then subjected to a phosphorus ester cleavage by treating a solution of phosphonate IV in an inert organic solvent, such as methylene chloride, sequentially with bis (trimethylsilyl) trifluoroacetamide (BSTFA) and trimethylsilyl bromide, under an inert atmosphere such as argon, to form the phosphonic acid v -530 II V HO-?-CH2-CH-CH2-C02alkyl OH 0 ^S^i-C(CH3)3 5 . C6H5 \S5 (a novel intermediate) Phosphonic acid V is esterified hy treating V in dry pyridine with a lower alkyl alcohol (such as methanol) and dicyclohexyl carbodiimide and the resulting reaction mixture is stirred under an inert atmosphere, such as argon, to form phosphonic monoalkyl ester VI (a novel intermediate).

Phosphonic monoester VI is then dissolved in an inert organic solvent, such as, methylene chloride, benzene or tetrahydrofuran (THF) and treated with trimethylsilyldiethylamine and stirred under an inert atmosphere such as argon, the mixture is evaporated and then dissolved in methylene chloride (or other appropriate inert organic solvent). The resulting solution is cooled to a temperature within the range of from about -10eC to about 0°C, treated with oxalyl chloride and catalytic dimethyl25 formamide and then evaporated to give crude phosphonochloridate VII (a novel intermediate). The phosphonochloridate VII is dissolved in inert organic solvent such as methylene chloride, benzene, pyridine or THF, the solution is cooled to a temperature within the range of from about -90°C to about 0°C and preferably from about -85°C to -54about -30°C and treated with a cooled (same range as solution of phosphonochloridate'VII) solution of the lithium anion of acetylene X formed by treating with a lithium source such as n-butyllithium in hexane or other inert solvent, X C=CH " I Z employing a molar ratio of VII :X of within the range of from about 3:1 to about 1:1 and preferably from about 1.5:1 to about 2:1 to form the acetylenic phosphinate XI Ii XI alkylO-P-CH£-CH-CH2-CO2 alkyl c δ III 1 . c /si-c(ca3)3 Z °6^5 (a novel intermediate) Acetylenic phosphinate XI may then be employed to prepare the various compounds of the present invention as follows.

Acetylenic phosphinate XI is converted to acetylenic phosphinate IA1 by subjecting XI to silyl ether cleavage by treating XI in an inert organic solvent such as tetrahydrofuran, with glacial acetic acid and tetrabutylammonium fluoride to form ester IA1 -550 ι· ΙΑ alkylO-P-CH2-CH-CH2-CO2 alkyl C ΟΞ III C I Z which, may then be hydrolyzed to the corresponding x xa. basic salt or acid, that is, where R is R which is ammonium, alkali metal, alkaline earth metal, an amine and the like, by treatment with strong base such as lithium hydroxide in the presence of dioxane, tetrahydrofuran or other inert organic solvent under an inert atmosphere such as argon, at °C, employing a molar ratio of base:ester IA2 of within the range of .'from about 1:1 to about 1.1:1 to form the corresponding basic salt o ll _ _ _ xa IAr alkylO-j>-CH2-CH-CH2-CO2-RA<1 C OH III C I z Compound IA may then be treated with strong acid such as HCl to form the corresponding acid 0 IA3 alkylO-^-CH2-CS-CH2-CO2H C OH III c The ester IA1 may be converted to the corresponding di-basic salt by treating ester IA1 with strong base at 50-60°C employing a molar ratio of base:ester IA1 of within the range of from about 2:1 to about 4:1 to form IA4 IA4 RXa0-?-CH2-CH-0H2-C02RXa C OH in C I Z The dibasic salt IA may be converted to the corresponding acid by treatment with strong acid such as HCl to form acid IA.

Phosphinate compounds of the invention where X is (cis) -CH=CH-, that is, IB are formed by subjecting acetylenic phosphinate XI to selective reduction, for example by treating XI with Z^ in the presence of a reduction catalyst such as palladium on carbon, palladium on barium carbonate and an inert organic solvent such as methanol to form the silyl ether XII -570 ιι XII alkylO-P-CH^—CH-CE^CO^alkyl CH 0 CH ^31-0(0¾ )3 Z CgHg CgHg (a novel intermediate) Silyl ether XII may then be subjected to silyl ether cleavage and hydrolysis as described above to form the ester IB1 IB1 alkylO-P-CH2-CH-CH2-CO2-alkyl CH OH II (cis) CH ι Z the basic salt IB2 IB2 alkylO-P-CH2-CH-CH2-CO2Rxa , CH 0H tl (cis) CH Z the acid IB3 58IB3 alkylO-^-CH2-QH-CH2-CO2H CH OH II (cis) CH Z the dibasic metal salt IB IB4 CH. 5h II (cis) CH ι Z and the corresponding diacid IB.

Phosphinate compounds of the invention where X is -CH^CH^, that is, ID are formed by subjecting acetylenic phosphinate XII to catalytic reduction, for example by treating XII with H2 in the presence of a reduction catalyst such as palladium on carbon and an inert organic solvent such as methanol at 50 psi to form the silyl ether XIII XIII alkylO-P-CH2—CH-CH2CO2-alkyl CT2 ° fe Z CgHg CgH^ (a novel intermediate) 59Silyl ether XIII may then be subjected to silyl ether cleavage and hydrolysis as described above to form the ester ID2 0 ID2 alkylO-P-CH2-gH-CH2-CO2-alkyl CH- OH I 2 1¾ z the basic salt ID ID2 alkylO-t-CH2-CH-CH2-CO2RXa , CH_ 0H I 2 CHi 2 Z the acid ID3 ID3 alkylO-P-CH2-CH-CH2-CO2H CH- OH I 2 CHI 2 Z the dibasic salt ID ID4 RxaO-P-CH2-CH-CH2-CO2RXa (fH2 OH fr Z •ί 60and the corresponding diacid ID.

Referring now to Reaction Sequence '’Β, compounds of Formula I wherein the X linking group between the phosphorus atom and the hydrophobic anchor Z is (trans) -CH=CH- may be prepared by treating a mixture of acetylene X and n-C^HgSnE with a radical initiator such as azobisisobutyryInitrile (AIBN), hydrogen peroxide, benzoyl peroxide and the like, and heating the resulting solution to a temperature of within the range of from about 100 to about 140°C under an inert atmosphere such as argon to form the vinyl stannane XV Sn(n-C4H9)3 XV CH // CH I Z Vinyl stannane XV dissolved in an organic solvent such as ethyl ether, methylene chloride or chloroform is treated with iodine and stirred under an inert atmosphere such as argon to form vinyl iodide XVI I XVI CH // CH ι Z A cooled solution of vinyl iodide XVI (-78 to -4Q°C in dry organic solvent such as tetra- < hydrofuran, or ethyl ether is treated with a 6110 metallating agent such as n-butyllithium in an inert organic solvent such as hexane and the mixture is cooled at a temperature of from -78 to -40°c under an inert atmosphere such as argon.

The anion is added to a cooled (-78 to -40°C) solution of phosphonochloridate VII at a molar ratio of XVI:VII of within the range of from about 1:1 to about 2:1 and preferably from about 1:1 to about 1.5:1 in dry inert organic solvent such as tetrahydrofuran, or ethyl ether to form the silyl ether XVII f3 C6H5 C6H5 Z (a novel intermediate) The silyl ether XVII is subjected to silyl ether cleavage by treating a solution of XVII in an inert organic solvent such as tetrahydrofuran, or acetonitrile with-glacial acetic acid and a solution of (n-C4Hg)4NF in an inert organic solvent such as tetrahydrofuran to form the hydroxy di ester IC1 IC ,1 O CH ι Z Diester IC1 may then be hydrolyzed as described 2 above to form the basic salt IC , IC* alkylO-i-C^-CH-^CO,,^3 (trans) CH OH CH the acid 1C' 1C' alkylO-^-CH^ -CH-C^ -CO2H .CH OH CH I z the basic salt IC IC ,xa.

II ro-p-ci^ -ch-ch2 -co2r· ^CH OH CH I z xa and the corresponding diacid IC IC O II HO-P-CH2 -ch-ch2 -CO2H CH OH '/ HC k 63In an alternative process, as shown in Reaction Sequence C", compounds of Formula I wherein the X linking group between the phosphorus atom and the hydrophobic anchor Z is (trans )-CH=CH- may be prepared by subjecting aldehyde VIII CHO ι VIII z to a condensation reaction with a cooled (-90 to 0°C). solution of dialkyl methylphosphonate and butyl lithium (LiCE^POfalkyl)2) in the presence of an organic solvent such as tetrahydrofuran or ethyl ether to form the β-hydroxyphosphonate XX 0 P(Oalkyl)2 XX HO-CH-CHI 2 Z The β-hydroxyphosphonate XX is then treated with p-toluenesulfonic acid in the presence of benzene or toluene while heating to a temperature within the range of from about 50 to about 120°C, preferably at reflux, to eliminate water and form the trans-olefin XXI P(Oalkyl)2 XXI (trans) ^CH CH I Z which is hydrolyzed by treating with aqueous alkali metal hydroxide, such as LiOH, in the presence of dioxane or other inert organic solvent and then with acid such as hydrochloric acid to form the monoacid ester XXII alkylO-t’-OH XXII (trans) ,CH C3 I z A solution of the monoacid ester XXII in dry methylene chloride is treated with trimethylsilyldiethylamine. The mixture is evaporated and the resulting oil is taken up in dry methylene chloride cooled to 0°C and treated with oxalyl chloride and a catalytic amount of dimethyl formamide under an inert atmosphere such as argon to form phosphonochloridate XXIII alkylO-l?-Cl XXIII (trans) CH CH I z Phosphonochloridate XXIII is condensed with an alkyl acetoacetate dianion such as methyl acetoacetate dianion in the presence of an inert organic solvent such as tetrahydro furan at reduced temperature of -90 to -40°C employing a molar ratio of phosphonochloridate:dianion of within the range of from about 1:1 to about 0.75:1 to form the ketophosphonate XXIV -65ιι ll XXIV alkylO-P-CH2-C-CH2-CO2alkyl (trans) CH Z (a novel intermediate) which is reduced by treatment with a reducing agent such as sodium borohydride in the presence of an alkanol such as ethanol to form the phosphinate II alky1O-P-CH2-CH-CH2-CO2 alkyl (trans) CH OH 15 CH k Diester IC2 may then be hydrolyzed as described 2 above to form the basic salt IC , IC2 alkyl0-^-CH2-CH-CH2C02Rxa (trans )^CH OH CH k the acid IC3 IC3 alkylO-P-CH2-CH-CH2-CO2H (trans) ^CH OH CH I z -66the basic salt IC IC4 RXaO-P-CH--CH-CE--CO-RXa I 2 | 2 2 (trans) ^CH OH CH I z and the corresponding diacid IC.

Referring to Reaction Sequence D, compounds of Formula I wherein X is -(CH^)^ and a is 1, 2 or 3, that is -CHg-, or -Q^CH^CE^- may be prepared starting with aldehyde VIII which is converted to halide Villa using conventional procedures. . For example, the aldehyde VIII may be reduced with NaBH^ in the presence of ethanol and ether to form the corresponding alcohol Villa CE-OH I 2 which is treated with mesyl chloride in the presence of an organic base such as triethylamine and a solvent such as methylene chloride to form the chloride XXV (a=l).

The chloride XXV is subjected to a condensation reaction where XXV is treated with phosphite III employing a molar ratio of III:XXV of within the range of from about 1:1 to about 10:1 and a temperature within the range of from about 100 to about 150°C to form phosphonate diester XXVI. A solution of the phosphonate diester XXVI in a solvent such as dioxane is treated with a strong base such as an alkali metal hydroxide, for example, LiOH, to form a corre-67sponding mcnoester which is treated with oxalyl chloride in the presence of an inert organic solvent such as dimethylformamide to form the corresponding phosphonochloridate XXVII. XXVII is condensed with an alkyl acetoacetate dianion such as methylacetoacetate dianion in the presence of an inert organic solvent such as tetrahydro furan at reduced temperatures of from about -90 to about -40°C employing a molar ratio of phosphono10 chloridate XXVII: dianion of within the range of from about 1:1 to 0.75:1 to form the ketophosphinate XXVII which is a novel intermediate. Ketophosphinate XXVII may then be reduced to the corresponding phosphinate ID1, IE1 and IF1 which may be hydrolyzed to form the corresponding diacids ID, IE and IF following procedures as described- with respect to Reaction Sequence C.

Referring to Reaction Sequence E, compounds of formula I wherein X is -CH2O- may be prepared starting with aldehyde VIII which is subjected to a Baeyer-Villiger oxidation by reacting VI11 with meta-chloroperbenzoic acid (MCPBA) in the presence of an inert organic solvent such as methylene chloride and followed by a strong base such as an alkali metal hydroxide like KOH or NaOH and a solvent such as tetrahydro fur an to form the corresponding alcohol XXIX. The alcohol XXIX is alkylated by treating XXIX with sodium hydride in the presence of an inert organic solvent such as dimethylformamide under an inert atmosphere such as argon and a solution of a dialkyl tosyloxymethylphosphonate XXX employing a molar ratio of XXX:XXIX of within the range of from about 1:1 to about 3:1 to form the corresponding dialkyl ester XXXI. The -68remainder of the synthesis described in Reaction Sequence E that is forming the monoester XXXII, chloride XXXIII, ketophosphinate XXXIV (a new intermediate), diester IG2 and diacid IG is similar to that set out hereinbefore with respect to in Reaction Sequence D.

The acetylene starting material X may be prepared from the corresponding aldehyde VIII VIII CHO I z by subjecting VIII to a Wittig reaction, for example, by treating a cooled solution of VIII (-25°C to 0°C) in triphenylphosphine, and an inert organic solvent such as methylene chloride, with a solution of tetrabromomethane (CBr^) in an inert organic solvent such as methylene chloride to form vinyl dibromide IX IX CH=CBrI 2 z Compound IX is subjected to dehydrohalogenation by 25 treatment with n-butyllithium in an inert organic solvent such as hexane under an inert atmosphere to give X.

Alternatively, aldehyde VIII may be converted directly to acetylene X by treatment with dimethyl di azomethy lphosphonate in the presence of potassium t-butoxide in an inert solvent such as tetrahydrofuran (-78°C to 25°C) under an inert atmosphere.

The iodide starting material A may be prepared starting with the bromide C -69OH I C Br-CH2-CH-CH2CO2alkyl (which is prepared by employing procedures as described in Tetrahedron Lett. 25, 2951 (1985) ) which is dissolved in solution in dimethylformamide 10 (DMF) with imidazole and 4-dimethylamino pyridine and the resulting solution is treated with t-butyldiphenvl silyl chloride under an inert atmosphere such as argon to form the silyl ether D C6\5X/C6H5 pSi-C(CE3)3 Br-CH2-CH-CH2 C02 alkyl A solution of si'lyl ether D in an inert organic 20 solvent such as methyl ethyl ketone or DMF is treated with sodium iodide under an inert atmosphere such as argon, to form iodide A.

The starting aldehyde compounds VI11, that is VIII CHO I z are known compounds..

The various intermediates Ul, VII, XI, XII, XIII, XVII and XXIV also are part of the present invention. The present invention accordingly provides compounds of the following generic formulae: -70XXXV -CH-CH--CO-alkyl ι 2 2 1' OSi-CCCI^ )/\ C6H5 C6H5 including all stereoisomers thereof, where alkoxy or hydroxy and R£ is alkoxy, Cl, -CH2-Z, -CH2CH2CH2-Z, -CH2O-Z, -C=C-Z, -CH: -CH=CZ-Z, -CH2CH2-Z, wherein Z is a hydrophobic anchor as defined above; and O Z ujherein X is (CH^) , -CH=CH-, -CHsC-, or -CH^O- and a is 1, 2 or 3 and Z is as defined above, including ail stereoisomers thereof.

The compounds of Application No. 1544/88 (Irish Patent Specification No. )may be prepared as racemic mixtures and may later be resolved to obtain the S-isomer which is preferred. However, the compounds of the invention may be prepared directly in the form of their S-isomers as described herein and in the working examples set out hereinafter.

The compounds of Application No. 1544/88(Irish Patent Specification No. )are inhibitors of 3-hydroxy-3-methyl-glutaryl coenzyme A (HMG-CoA) reductase and thus are useful in inhibiting cholesterol biosynthesis as demonstrated by the following tests. 711) Rat Hepatic HMG-CoA Reductase Rat hepatic HMG-CoA reductase activity is measured using a modification of the method described by Edwards (Edwards, P.A., et al., J. Lipid Res. 20:40, 1979). Rat hepatic microsomes are used as a source of enzyme, and the enzyme activity is determined by measuring the 14 conversion of the C-HMG-CoA substrate to 14 C-mevalomc acid. a. Preparation of Microsomes Livers are removed from 2-4 cholestyramine-fed, decapitated, Sprague Dawley rats, and homogenized in phosphate buffer A (potassium phosphate, 0.04 M, pH 7.2; KCl, 0.05 M; sucrose, 0.1 M; EDTA, 0.03 M; aprotinin, 500 KI units/ml). The homogenate is spun at 16,000 x g for 15 minutes at 4°C. The supernatant is removed and recentrifuged under the same conditions a second time. The second 16,000 x g supernatant is spun at 100,000 x g for 70 minutes at 4°C.

Pelleted microsomes are resuspended in a minimum volume of buffer A (3-5 ml per liver), and homogenized in a glass/glass homogenizer.

Dithiothreitol is added (10 mM), and the preparation is aliquoted, quick frozen in acetone/dry ice, and stored at -80°C. The specific activity of the first microsomal preparation was 0.68 nmole mevalonic acid/mg protein/minute. 72b. Enzyme Assay The reductase is assayed in 0.25 ml which contains the following components at the indicated final concentrations: 0.04 M Potassium phosphate, pH 7.0 0.05 M KC1 0.10 M Sucrose 0.03 M EDTA 0.01 M Dithiothreitol 3.5 mM NaCl 1% Dimethylsulfoxide 50-200 pg Microsomal protein 100 pM14C-[DL]HMG-COA (0.05 pCi, 30-60 mCi/mmole) 2.7 mM NADPH (nicotinamide adenine dinucleotide phosphate) Reaction mixtures are incubated at 37°c. Under conditions described, enzyme activity increases linearly up to 300 pg microsomal protein per reaction mixture, and is linear with respect to incubation time up to 30 minutes. The standard incubation time chosen for drug studies is 20 minutes, which results in 12-15% conversion of HMG-CoA substrate to the mevalonic acid product. [DL-]HMG-CoA substrate is used at 100 pM, twice the concentration needed to saturate the enzyme under the conditions described. NADPH is used in excess at a level 2.7 times the concentration required to achieve maximum enzyme velocity. 73Standardized assays for the evaluation of inhibitors are conducted according to the following procedure. Microsomal enzyme is incubated in the presence of NADFH at 37®C for IS minutes. DMSO vehicle with or without test compound is added, and the mixture further incubated for 15 minutes at 37°C. The enzyme 14 assay is initiated by adding C-HMG-CoA substrate. After 20 minutes incubation at 37°C the reaction is stopped by the addition of 25 μΐ of 33% KOH. H-mevalonic acid (0.05 yCi) is added, and the reaction mixture allowed to stand at room temperature for 30 minutes. Fifty μΐ 5N HCl is added to lactonize the mevalonic acid.

Bromophenol blue is added as a pH indicator to monitor an adequate drop in pH. Lactonization is allowed to proceed for 30 minutes at room temperature. Reaction mixtures are centrifuged for 15 minutes at 2800 rpm. The supernatants are layered onto 2 grams AG 1-X8 anion exchange resin (Biorad, formate form) poured in 0.7 cm (id) glass columns, and eluted with 2.0 ml H20. The first 0.5 ml is discarded, and the next 1.5 ml is collected and counted for both tritium and carbon 14 in 10.0 ml Opti-fluor scintillation fluid.

Results are calculated as nmoles mevalonic acid produced per 20 minutes, and are corrected to 100% recovery of tritium. Drug effects are expressed as values (concentration of drug producing 50% inhibition of enzyme activity) derived from composite dose response data with the 95% confidence interval indicated. 74Conversion of drugs in lactone form to their sodium salts is accomplished by solubilizing the lactone in DMSO, adding a 10-fold molar excess of NaOH, and allowing the mixture to stand at room temperature for 15 minutes. The mixture is then partially neutralized (pH 7.5-8.0) using IN HCI, and diluted into the enzyme reaction mixture. 2) Cholesterol Synthesis in Freshly Isolated Rat Hepatocytes Compounds which demonstrate activity as inhibitors of HMG-CoA reductase are evaluated for 14 their ability to inhibit C-acetate incorporation into cholesterol in freshly isolated rat hepatocyte suspensions using methods originally described by Capuzzi et al. (Capuzzi, D.M. and Margolis, S., Lipids, 6:602, 1971). a. Isolation of Rat Hepatocytes Sprague Dawley rats (180-220 grams) are anesthetized with Nembutol (50 mg/kg). The abdomen is opened and the first branch of the portal vein is tied closed. Heparin (100-200 units) is injected directly into the abdominal vena cava. A single closing suture is placed on the distal section of the portal vein, and the portal vein is canulated between the suture and the first branching vein. The liver is perfused at a rate of 20 ml/minute with prewarmed (37eC), oxygenated buffer A (HBSS without calcium or magnesium containing 0.5 mM EDTA) after severing the vena cava to allow drainage of the effluent.

The liver is additionally perfused with 200 ml of -75prewarmed buffer B (HBSS containing 0.05% bacterial collagenase). Following perfusion with buffer B, the liver is excised and decapsulated in 60 ml Waymouth' s medium allowing free cells to disperse into the medium. Hepatocytes are isolated by low speed centrifugation for 3 minutes at 50xg at room temperature. Pelleted hepatocytes are washed once in Waymouth's medium, counted and assayed for viability by trypan blue exclusion. These hepatocyte enriched cell suspensions routinely show 70-90% viability. b. C-Acetate Incorporation into Cholesterol_ Hepatocytes are resuspended at 5xl06 cells per 2.0 ml in incubation medium (IM) [0.02 M Tris-HCl (pH 7.4), 0.1 M KCl, 3.3 mM sodium citrate, 6.7 mM nicotinamide, 0.23 mM NADP, 1.7 mM glucose-6-phosphate].

Test compounds are routinely dissolved in DMSO or DMSO:H2O (1:3) and added to the IM. Final DMSO concentration in the IM is £ 1.0%, and has no significant effect on cholesterol synthesis.

Incubation is initiated by adding 14 C-acetate (58 mCi/mmol, 2 μθι/ml), and placing the cell suspensions (2.0 ml) in 35 mm tissue culture dishes, at 37°C for 2.0 hours. Following incubation, cell suspensions are transferred to glass centrifuge tubes and spun at 50xg for 3 minute*; at room temperature. Cell pellets are resuspended and lysed in 1.0 ml H2O, and placed in an ice bath.

Lipids are extracted essentially as described by Bligh, E. G. and W. J. Dyer, Can. J. Biochem. and Physiol., 37:911, 1959. The lower organic phase is removed and dried under a stream of nitrogen, and the residue resuspended in (100 μΐ) chloroform:methanol (2:1). The total sample is spotted on silica gel (LX6D) thin-layer plates and developed in hexane:ethyl ether:acetic acid (75:25:1). Plates are scanned and counted using a BioScan automated scanning system. Radiolabel in the cholesterol peak (RF 0.2B) is determined and expressed at total counts per peak and as a percent of the label in the total lipid extract. Cholesterol peaks in control cultures routinely contain 800-1000 cpm, and are 9-20% of the label present in the total lipid extract; results compatable with Capuzzi, et al., indicating 9% of extracted label in cholesterol.

Drug effects (% inhibition of cholesterol synthesis) are determined by comparing % of label in cholesterol for control and drug treated cultures. Dose response curves are constructed from composite data from two or more studies, and results are expressed as I5Q values with a 95% confidence interval. 3) Cholesterol Synthesis in Human Skin Fibroblasts Compound selectivity favoring greater inhibitory activity in hepatic tissue would be an attribute for a cholesterol synthesis inhibitor. Therefore, in addition to evaluating cholesterol synthesis inhibitors in hepatocytes, these compounds are also tested for their activity as -77inhibitors of cholesterol synthesis in cultured fibroblasts. a. Human Skin Fibroblast Cultures Human skin fibroblasts (passage 7-27) are grown in Eagles' minimal essential medium (EM) containing 10% fetal calf serum. For each experiment, stock cultures are trypsonized to disperse the cell monolayer, counted, and plated in 35 mm tissue culture wells (5xl05 cells/2.0 ml). Cultures are incubated for 18 hours at 37°C in 5% CO2/95% humidified room air. Cholesterol biosynthetic enzymes are induced by removing the serum containing medium, washing the cell monolayers, and adding. 1.0 ml of EM containing 1.0% fatty acid free bovine serum albumin, and incubating the cultures an additional 24 hours. b. C-Acetate Incorporation into Cholesterol_ Induced fibroblast cultures are washed with ΕΜΕΜ^θθ (Earle’s minimal essential medium). Test compounds are dissolved in DMSO or DMSO:EM (1:3) (final DMSO concentration in cell cultures £ 1.0%), added to the cultures, and the cultures preincubated for 30 minutes at 37°C in 5% CO2/95% humidified room air. Following preincubation with drugs, [l-14C]Na acetate (2.0 pCi/ml, 58 mCi/mmole) is added, and the cultures reincubated for 4 hours.

After incubation, the culture medium is removed, and the cell monolayer (200 pg cell protein per culture) is scraped into 1.0 ml of H20. Lipids in the lysed cell suspension are extracted into -78chloro form: methanol as described for hepatocyte suspensions. The organic phase is dried under nitrogen, and the residue resuspended in chloroform:methanol (2:1) (100 μΐ), and the total sample spotted on silica gel (LK6D) thin-layer plates, and analyzed as described for hepatocytes. inhibition of cholesterol synthesis is determined by comparing the percent of label in the cholesterol peak from control and drug-treated cultures. Results are expressed as IgQ values, and are derived from composite dose response curve from two or more experiments. A 95% confidence interval for the I5Q value is also calculated frcm the composite dose response curves.

A pharmaceutical composition can be prepared which consists of at least one of the compounds of formula I in association with a pharmaceutical carrier (vehicle or diluent). The pharmaceutical composition can be formulated employing conventional solid or liquid vehicles of diluents and pharmaceutical additives of a type appropriate to the mode of desired administration. The compounds. can be admi ni by an oral route, for example, in the form of tablets, capsules, granules or powders, or they can be admin-i g-har&d by a parenteral route in the form of injectable preparations, such dosage forms contain: ng from 1 to 2000 mg of active compound per dosage, for use in the treatment. The dose to be administered depends on the unitary dose, the symptoms, and the age and the body weight of the patient. -79The compounds of formula I may be administered in a similar manner as known compounds suggested for use in inhibiting cholesterol biosynthesis, such as lovastatin, in mammalian species such as humans, dogs, cats and the like. Thus, the compounds of formula I may he adm-in-i in an amount from about 4 to 2000 mg in a single dose or in the form of individual doses from 1 to 4 times per day, preferably 4 to . 200 mg in divided dosages of 1 to 100 mg, suitably 0.5 to 50 mg 2 to 4 times daily or in sustained release form. -80The following working Examples represent preferred embpdiments of compounds of formula I and their preparation, these embodiments also illustrating intermediate compounds of the present invention, their preparation and their use.

Unless otherwise indicated, all temperatures are expressed in degrees Centigrade. Flash chromatography was performed on either Merck SD or Whatmann LPS-I silica gel. Reverse phase chromarcgraphy was performed on CHP-20 MCI gel resin supplied by Mitsubishi, Ltd.

As used in the following Examples, the abbreviations Et20, EtOAc", "MeOH" and EtOH refer to ethyl ether, ethyl acetate, methanol and ethanol, respectively.

Example 1 (S)-4-[[2-J>' -Flupro-3.3’ ,5-trimethyl-[l ,1 ’-biphenyl]-2-yl] ethyl]methoxyphosphinyl]-3-hydxoxybutanoic acid, methyl ester________ A. N- (2,4-Dimethylbenzylidene )benzeneamine Ref. Merck U. S. Patent No. 4,375,475, pg. 39.

A solution of freshly distilled 2.4—τπΑ-rbyialdehyde (Aldrich, 6.97 ml, 50 mmole) and distilled aniline (Aldrich, 4.56 ml, 50 mmole) in dry toluene (80.0 ml) was refluxed for 3.0 hours under argon in a flask equipped with a Dean-stark apparatus. The mixture was cooled, then evaporated in vacuo to a yellow oil. The crude oil was purified by Kugelrohr distillation (0.5 mm Hg, 160-180°C) to give 8.172 g (78.1%) of . desired title benzeneimine as a light yellow oil which crystallized on standing to a low melting solid. TLC (4:1) Hex-acetone, Rf=0.67 and 0.77 (geometric isomers), U.V. and I2. -8110 B. Φ N ,Pd0 Ί 1 o J0CCH3 Ref. Merck U.S. Patent No. 4,375,475, pg. 39.

A mixture of Part A benzeneimine (6.0 g, 28.7 mmol) in glacial HOAc (144 ml) was treated with palladium (II) acetate (6.44 g, 28.7 mmole) and the clear, red homogeneous solution refluxed under argon for one hour. The resulting turbid mixture was filtered warm through a packed V bed of Celite into 900 ml of H^O· Precipitated orange solid was collected by filtration and dried in vacuo at 65°C over P2°5 ^or 16 hours to give 10.6 g (85.5%) of desired title palladium complex as an orange solid with m.p. = 194°-196eC. (Literature m.p. of a recrystallized analytical sample = 203°-205°C).

C. 4’-Fluoro-3,3’,5-trimethyl[1,1'biphenyl1-2-carboxaldehyde_ (1) Bromo[4-fluoro-3-methylphenyl]magnesium__ Ref. Merck U. S. Patent No. 4,375,475, pp. 37 and 38.

The title Part C(l) Grignard reagent was prepared by adding 5-bromo-2-fluorotoluene (22.5 g, 60.9 mmole, Fairfield Chemical Co.) dropwise at a rate sufficient to maintain the reaction at reflux to stirred magnesium turnings (1.35 g, 55.4 mmole, 8.0 eq.) in dry Et2O (70.0 ml). The reaction was initiated in an ultrasound device.

After bromide addition was complete, the mixture was stirred for one hour under argon at room temperature, refluxed for 15 minutes and then allowed to cool to room temperature. (2) 4'-Fluoro-3,3’,5-trimethylf1,11-biphenyl1-2-carboxaldehyde In a second flask, a mixture of the Part B dipalladium complex (3.0 g, 6.92 mmole) and triphenylphosphine (14.52 g, 55.4 mmole, 8.0 eq. ) in dry benzene (100 ml) was stirred at room temperature under argon for 30 minutes. Freshly prepared and filtered (glass wool plug) Part C (1) Grignard reagent was then added in one portion by means of a cannula to this solution and the mixture was stirred for 1.5 hours at room temperature under argon. 6.0 N HCl (35 ml) was added, the mixture stirred an additional hour at room temperature, then filtered through packed Celite (V bed). The filtrate was extracted with Et2O (250 ml), the extract washed with brine (2 x 100 ml), dried over anhydrous MgSO^ and evaporated in vacuo to give 13.35 g of a viscous orange oil which crystallized on standing. The crude orange solid was purified by flash chromatography on silica gel (700 g) eluting with hexane, followed by (95:5) hexane-Et2O. Product fractions were combined and evaporated to give 1.507 g (89.9%) of < desired title aldehyde as a light yellow solid with 83m.p. = 72°-75°C) (Literature reports m.p. = 73®-74°C).

TLC: (95:5) Hex-Et2O, Rf = 0.40, U.V. and PMA.

D. 2-(2,2-Dibromoethenyl)-4'-fluoro3,3*,5-trimethyl[1,11-biphenyl1 A cooled (-10°C, salt/ice bath) solution of the Part C biphenyl aldehyde (242 mg, 1.0 mmole) and triphenylphosphine (787 mg, 3.0 mmole, 3.0 eq), in dry CH2C12 (10 ml) was treated dropwise with a solution of CSr4 (497 mg, 1.5 mmole, 1.5 eq) in CH2C12 (5.0 ml) over a 5 minute period. After 30 minutes at 0°C the red-orange solution was partitioned between CH2C12 and saturated NaHCOg.

The organic phase was washed with saturated NaHCOg and brine, then dried over anhydrous Na2SO4 and evaporated to give 1.478 g of a light brown solid. The crude solid was purified by flash chromatography on silica gel (50:1) eluting with (9:1) Hex-CH2C12· Product fractions were combined and evaporated to give 392 mg (99%) of pure title vinyl dibromide as a pale yellow oil. TLC (95:5) Hex-EtOAc, Rf = 0.51, UV and PMA.

E. 2-Ethynyl-4 '-fluoro-3,3', 5-tr imethy 1[1,1 '-biphenyl]____ A -78°C (dry ice/acetone) solution of the Part D vinyl dibromide (336 mg, 0.844 mmole} in dry thf (5 ml) was treated dropwise via syringe with a 1.6 M solution of n-BuLi in hexanes (1.06 ml, 1.7 mmole, 2.0 eq) and the mixture stirred at -78®C under argon for one hour. During the n-BuLi addition color changes from colorless to deep yellow to pale yellow to deep blue-purple were evident. The mixture was quenched at -78°C by the dropwise addition of saturated NE^Cl (4 ml), allowed to warm to room temperature, extracted with Et2O, the ethereal layer washed with brine, dried over anhydrous MgS04 and evaporated to give 191 mg of a green oil. The crude oil was purified by flash chromatography on LPS-1 silica gel (60:1) eluting with hexanes. Product fractions were combined and evaporated to give 185 mg (92%) of desired title acetylene as a colorless oil which eventually turned deep blue on standing at -20°C under argon.

TLC hexane, Rf = 0.18 UV and PMA.

F. (S)-3-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-4-(chloromethoxyphosphinyl) butanoic acid, methyl ester (1) (S)-4-Bromo-3-hydroxybutanoic acid, methyl ester_ (1)(a) [R-(R*,R*)]-2,3,4-trihydroxybutanoic acid, calcium salt, hydrate Ref. Carbohydrate Research 72,, pp. 301-304 (1979). Calcium carbonate (50 g) was added to a solution of D-isoascorhic acid (44.0 g, 250 mmol) in H20 (625 ml), the suspension cooled to 0°C (ice bath) and treated portionwise with 30% (100 ml). The mixture was stirred at 30°-40°C (oil bath) for 30 minutes. Darco (10 g) was added and the black suspension heated on a steam bath until evolution of O2 ceased. The suspension was filtered through Celite, evaporated in vacuo (bath temperature 40°C). The residue was taken up in H^O (50 ml), warmed on a steam bath and CH^OH was added until the solution was turbid. The gummy precipitated solid was collected by filtration and air dried to give 30.836 g (75.2%) of desired calcium salt as a powdery white solid.

TLC (7:2:1) iPrOH-NH40H-H2O, Rf = 0.19, PMA. (l)(b) [S-(R*,S*)]-2,4-Dihromo-310 hydroxybutanoic acid, methyl ester Ref. Bock, K. et al., Acta Scandinavica (B) 37, pp. 341-344 (1983) Part (l)(a) calcium salt (30 g) was 15 dissolved in 30-32% HBr in acetic acid (210 ml) and stirred at room temperature for 24 hours. Methanol (990 ml) was then added to the brown solution and it was stirred overnight. The mixture was evaporated to an orange oil, taken up in CH^OH (75 ml), refluxed for 2.0 hours and evaporated.

The residue was partitioned between EtOAc (100 ml) and H2O, the organic phase washed with H2O (2x) and brine then dried over anhydrous Na2SO4 and evaporated to give 22.83 g (90.5%) of crude dibromide as a light orange oil. TLC (1:1) EtOAc-Hex, Rf - 0.69, UV & PMA. (1) (c) (S) -4-Bromo-3-hydroxybutanoic acid, methyl ester_ Ref. the same as for preparation of (l)(b).

An argon purged solution of the dibromide (20.80 g, 75.4 mmol) and anhydrous NaOAc (21.0 g) in EtOAc (370 ml) and glacial HOAc (37 ml) was treated with 5% Pd/C (1.30 g) and the black suspension stirred under of Hg (1 atm) while monitoring H2 uptake. After 2.0 hours H2 uptake was complete, the mixture was filtered through Celite, the filtrate washed with saturated NaECO3 and brine then dried over anhydrous MgSO^ and evaporated to give crude dibromoester as a brown oil. The crude oil was combined with another batch (starting from 36.77 g of the dibromide) and vacuum distilled to give .77 g (61.3%) of desired title bromoester as a colorless oil with b.p. = 79°-80eC (1.0 mm Hg). TLC (1:1) EtOAc-Hex, Rf = 0.44, PMA.

Anal Calcd for C-H-O-Br: C, 30.48; H, 4.6,0; Br, 40.56 Found: C, 29.76; H, 4.50; Br, 39.86 (2) (S )-4-Bromo-3-[ [ (1,1-dimethylethyl)- diphenylsilyl]oxy]butanoic acid, methyl ester_____ A solution of part F(l) bromohydrin (4.0 g, .4 mmol), imidazole (6.94 g, 5.0 eg.), and 4-dime thy lamino pyridine (4-DMAP) (12 mg, 0.005 eq.) in dry DMF (40 ml) was treated with t-butyldiphenylsilyl chloride (5.84 ml, 1.1 eq.) and the homogeneous mixture stirred overnight under argon at room temperature. The mixture was partitioned between 5% KHS04 and EtOAc, the organic phase washed with H2O and brine, dried over anhydrous Na2SO4 and evaporated to give 9.32 g (100%) of crude silyl ether as a colorless, viscous oil. -87TLC (3:1) Hex-EtOAc, Rf silyl ether =0.75, U.V. and PMA. (3 ) (S)-4-Iodo-3-[[(1,1-dimethylethyl)diphenylsilyl] oxy] butanoic acid, methyl ester A solution of the crude Part F(2) bromide (9.32 g, 201 mmole) in methyl ethyl ketone (60 ml, dried over 4A sieves) was treated with sodium iodide (15.06 g, 100.5 mmole, 5.0 eg.) and the yellow suspension refluxed for 5.0 hours under argon. The mixture was cooled, diluted with EtOAc, filtered, the filtrate washed with dilute NaHSO^ (until colorless) and brine then dried over anhydrous Na2SO4 and evaporated in vacuo to give .17 g of a yellow oil. The crude oil was purified by flash chromatography on silica gel (600 g) eluting with (3:1) Hexane-CH2C12. Product fractions were combined and evaporated to give 7.691 g (74.2%, overall yield for both steps) of desired title iodide as a clear, colorless, viscous oil. TLC (3:1) Hex-EtOAc, product. Rf = 0.75, U.V. and PMA. (Note: product iodide co-spots with starting bromide). (4) (S)-4-(Diethoxyphosphinyl)-3- [ [ (1,1dimethylethyl) diphenylsilyl ] oxy] butanoic acid, methyl ester _ A solution of the iodide (7.691 g) in triethyl phosphite (20 ml) was heated at 155eC (oil bath) for 3.5 hours under argon. The mixture was cooled and excess phosphite distilled off in vacuo (0.5 mm Hg, 75°C) to leave a yellow oil (^8.0 g). The crude oil was purified by flash chromatography on silica gel (400 g) eluting with (4:1) Hexane-ace tone. Product fractions were evaporated to give 3.222 g (41.1%) of desired title phosphonate as a clear, colorless, viscous oil.

TLC (1:1) Hex-acetone, Rf = 0.51, U.V. and PMA. Additionally 2.519 g (61.1% corrected yield) of starting Part (3) iodide was recovered. (5) (s)-3-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-4-phosphonobutanoic acid, methyl ester A solution of the Part F(4) phosphonate (9.85 g, 20.0 mmole) in dry (20 ml) was treated sequentially with bistrimethylsilyltrifluoroacetamide (BSTFA) (5.31 ml, 32.0 mmole, 1.6 eq.) and trimethylsilyl bromide (TMSBr) (6.60 ml 50.0 mmole, 2.5 eq.) and the clear mixture stirred overnight under argon at room temperature. 5% KHSO^ (80 ml) was added and the mixture was extracted with EtOAc. The aqueous phase was saturated with NaCl and re-extracted with EtOAc.

The combined organic layers were washed -with brine, dried over anhydrous Na2S04 and evaporated in vacuo to give crude title phosphonic acid as a viscous oil. TLC (7:2:1) iPrOH-NH40H-H20, Rf 0.30, U.V. and PMA. (6) (S)-3-[((1,1-Dimethylethyl)diphenylsilyl ] oxy] -4- (hydroxymethoxyphosphinyl) butanoic acid, methyl ester_ Part F(5) crude phosphonic acid (-^20.0 mmole) * in dry pyridine (25 ml) was treated with dried -89CH^OE (over.3A sieves, 1.62 ml, 40.0 mmole, 2.0 eq.) and dicyclohexyl carbodiimide (DCC) (4.54 gm, 22.0 mmole, 1.10 eq.) and the resulting white suspension stirred under argon at room temperature overnight. Pyridine was removed in vacuo, then azeotroped with benzene (2 x 15 ml). The residual oil was dissolved in EtOAc, filtered and washed with 1.0 N HCl and brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 8.272 g of crude title ester as an oil containing a small amount of precipitated dicyclohexyl urea (DCU). TLC (7:2:1) iPrOH-NHj-OH H2O, Rf = 0.60, U.V. and PMA. (7) (S)-3-[[(1-Dimethylethyl)diphenylsilyl] oxy ] -4- (chloromethoxyphosphinyl) butanoic acid, methyl ester Part F(6) crude phosphonic acid mono methyl ester (6.595 gm, ~14.7 mmole) was dissolved in dry CH2C12 (30 ml), treated with distilled trimethyl• silyldiethylamine (5.60 ml, 29.4 mmole, 2.0 eq. ) and stirred under argon at room temperature for 1 hour. The mixture was evaporated in vacuo, chased with benzene (1 x 30 ml) and dried in vacuo.

The light yellow viscous oil was dissolved in dry CH2C12 (30 ml) and DMF (dried over 4A sieves, 2 drops), the clear solution cooled to -10°C (salt/ice bath) and treated dropwise via syringe with distilled oxalyl chloride (1.41 ml, 16.2 mmole, 1.1 eq.)· Vigorous gas evolution was evident and the solution became deeper yellow in color. The mixture was stirred under argon at -10°C for 15 minutes then allowed to stir at room temperature for 1 hour. The mixture was evaporated in vacuo, chased with benzene (1 x 30 ml) and dried in vacuo to give crude phosphonochloridate as a yellow oil.

G. (S)-4-[[2-[4’-Fluoro-3,3’,5-trimethyl[1,1’-biphenyl]-2-yl]ethynyl]methoxypho sphiny 1 ] - 3 - t-buty 1 dipheny 1 s i ly 1 oxybuT-anoic acid, methyl ester_ A -78 °C (CO2/acetone) solution of the Part E acetylene (2.678 g, 11.2 mmole) in dry THF (20 ml) was treated dropwise with a 1.6 M solution of n-BuLi in hexanes (7 ml, 11.2 mmole, 1.0 eg). The purple mixture was stirred under argon at -78°C for one hour, briefly warmed to 0°C, recooled to -78°C, transferred by cannula into an addition funnel and added dropwise to a -78 °C (C02/acetone) solution of the Part F phosphonochloridate (8.27 g, 18.4 mmole, 1-.6 eq) in dry THF (20 ml). After one hour at -78°C the mixture was quenched with saturated NH^Cl, then allowed to warm to room temperature and extracted with Et2O. The ethereal layer was washed with saturated NaHCO^ and brine then dried over anhydrous MgS04 and evaporated to give 11.705 g of a brown oil. The crude oil was purified by flash chromatography on silica gel eluting with (7:3) Hex-EtOAc. Product fractions were combined and evaporated to give 4.246 g (56%) of desired title acetylenic phosphinate as a light brown oil. Additionally, 457 mg (68% corrected yield) of Part E biphenyl acetylene, was recovered. TLC (7:3) Hex-Acetone, Rf = 0.20, UV and PMA. -91• H. (S )-4-[f2-[4'-Fluoro-3,3' ,5-trimethyl[1,1’ -biphenyl ] -2-yl ] ethyl ]methoxyphosphinyl ] -3-t-butyldiphenylsilyloxybutanoic acid, methyl ester An argon purged solution of the Part G acetylenic phosphinate (333 mg) in CH^OE (5 ml) was treated with 10% Pd/C (121 mg, 36% by weight) and shaken on a Parr apparatus under H2 (40 psi) for 30 hours. Catalyst was removed by filtration through packed Celite and the filtrate evaporated to a pale yellow oil. The crude oil was purified by flash · chromatography on silica gel eluting with (1:1) EtOAc-Sex. Product fractions were evaporated to give 250 mg (75%) of the title saturated phosphinate as a clear oil.

TLC (4:1) EtOAc-Hex, Rf = 0.33, UV and PMA.

J. (S )-4-[[2-C4’-Fluoro-3,3',5-trimethyl[1,1’-biphenyl]-2-yl]ethyl]methoxyphos20 phinyl]-3-hydroxybutanoic acid, methyl ester_ A solution of the Part H silyl ether (330 mg, 0.489 mmole) in dry THF (6 ml) was treated with glacial HOAc (115 μΐ, 1.96 mmole, 4.0 eq) followed by a 1.0 M tetrabutylammonium fluoride solution in THF (1.47 ml, 1.47 mmole, 3.0 eq) and the resulting mixture stirred overnight at room temperature under argon. The mixture was diluted with 10 ml of ice water and extracted with EtOAc (2X). The organic phase was washed with saturated NaHCO3 and brine then dried over anhydrous Na2SO4 and evaporated to give 364 mg of a pale yellow oil. The crude oil was purified by flash -92chromatography on silica gel eluting with (6:4) Acetone-Hexane. Product fractions were evaporated to give 205 mg (96%) of desired title free alcohol as a clear oil which slowly crystallized on standing.

TLC (7:3) Acetone-hexane, Rf = 0.28, UV and PMA.

Example 2 (S)-4-[[2-[4’-Fluoro-3,3',5-trimethyl[l,1'biphenyl ] -2-yl ] ethyl ] hydroxyphosphinyl ].-3 -hydroxybutanoic acid, dilithium salt A solution of the Example 1 diester (187 mg, 0.429 mmole) in dioxane (5 ml) was treated with a 1.0 N LiOH solution (1.29 ml, 1.29 mmole, 3.0 eq) and the mixture heated at 55eC (oil bath) under argon for 2.5 hours. The mixture was cooled, diluted with H20, filtered and evaporated in vacuo. The residue was dissolved in a minimum amount of H2O and chromatographed on HP-20 resin (25 mm column diameter, ^15 cm bed) eluting with H2O followed by a (1:1) CHgOH-^O mixture. Collected product fractions were evaporated, dissolved in H20 (50 ml), filtered, and lyophilized to give 175 mg (91%, based on hydrate weight) of desired title dilithium salt as a white, electrostatic solid.

TLC (8:1:1) C^C^-C^OH-HOAc, Rf = 0.1, UV and PMA and (7:2:1) iPrOH-NH^H-^O, Rf = 0.45, UV and PMA.

Microanalysis for C2iH24°5FPL^2 1,7 moles H2° (MW 450.90) Calcd: C, 55.93; H, 6.13; F, 4.21; P, 6.87 Found: C, 55.91; H, 5.84; F, 3.92; P, 6.89 ^H-NMR (400 MHZ, CD3 OD δΐ.34 - 1.56 ppm (4Η, multiplet) 2.22 - 2.31 ppm (2H, multiplet) 2.25 + 2.37 ppm (6Ξ, two singlets) 2.29 ppm (3Ξ, doublet, = 1-4 Hz) 2.75 ppm (2H, multiplet) 4.13 ppm (IH, multiplet) 6.73 - 7.10 ppm (5H, multiplet) Example 3 (S)-4-[[2-[4’-Fluoro-3,3',5-trimethyl[1,1’biphenyl ] -2-yl ] ethynyl ] methoxypho sphiny 1 ] -3 hydroxybutanoic acid, methyl ester A mixture of the Example 1 Part G silyl ether (455 mg, 0.678 mmole) and glacial acetic acid (155 μΐ, 2.71 mmole, 4.0 eq.) in dry THF (7 ml) was treated with a 1.0 M tetrabutylammonium fluoride solution in THF (2.0 ml, 2.0 mmole, 3.0 eq. ) and the resulting solution stirred overnight under argon at room temperature. The mixture was poured into ice cold H20 (10 ml) and extracted with EtOAc (2X). The organic phase was washed with saturated NaHCO3 and brine, then dried over anhydrous Na2SO4 and evaporated to give 498 mg of. a yellow oil. The crude product was purified by flash chromatography on silica gel eluting with (3 :2 ) Hexane-Acetone. Product fractions were evaporated to give 217 mg (74%) of title alcohol as a colorless oil.

TLC (7:3) Hexane-Acetone, Rf = 0.10, U.V. and PMA Example 4 ’ (S)-4-[[2-[4·-Fluoro-3, 3 ’ ,5-trimethyl[1,1'biphenyl]-2-yl]ethynyl]hydroxyphosphinyl]-3hydroxybutanoic acid, dilithium salt_ A mixture of the Example 3 diester (203 mg, 0.469 mmole) in dioxane (6 ml) was treated with a 1.0 N LiOE (1.6 ml, 1.6 mmole, 3.5 eq.) and the solution heated at 55° (oil bath) under argon for 30 minutes. The mixture was cooled, diluted with H^O, filtered, evaporated, taken up in H2O (30 ml) and lyophilized. The white lyophilate was dissolved in a minimum amount of H20 and chromatographed on ΞΡ-20 resin (25 mm diameter column, 10 cm resin bed), eluting with followed by (50:50) ^O-CH^H. Product fractions were combined and evaporated, the residue taken up in H20 (30 ml) and lyophilized to give 199 mg (97%, based on hydrate, MW = 435.36) of the title di-lithium salt as a white solid.

TLC (8:1:1) CH^^-CE^OH-HOAc, Rf = 0.13, U.V. and PMA.

Microanalysis for C2^H2QOgFPLi2 + 1.06 moles H2O (MW 435.36) Calcd: C, 57.93; H, .5.12; F, 4.36; P, 7.11 Found: C, 57.91; H, 4.89; F,.4.22; P. 6.89 NMR (400 MHzCD30D): 61.76-1.82 ppm (2H, multiplet) 2.32 (3H, doublet, 3^=1.8 Hz) 2.34 (3H, singlet) 2.37 (IH, dd, J=8.4 Hz) 2.41 (IH, dd, J=4.1 Hz) 2.49 (3H, singlet) 4.27 (IE, multiplet) 6.98-7.37 (5Ξ, m) Examcle 5 (S, Z )-4- [ [2- [4' -Fluoro-3,3 ', 5-trimethyl [1,1'biphenyl ] -2-yl ] ethenyl ] methoxyphosphinyl ] -3 10 hydroxybutanoic acid, methyl ester_ A. (S,Z)-4-[[2-[4'-Fluoro-3,3',5trimethyl[1,1'-biphenyl]-2-yl]ethenyl]methoxyphosphinyl ] -3-t-butyldiphenylsilyloxv-butanoic acid, methyl ester A degassed solution of the Example 1 Fart G acetylenic phosphinate (498 mg, 0.742 mmole) in CH^OH (10 ml) was treated with 10% Pd/C (50 mg, % by weight) and the black suspension stirred under an atmosphere (1 atm) for 2 hours.

Catalyst was removed by filtration through Celite and the filtrate evaporated to give 500 mg of a yellow oil. The crude product was purified by flash chromatography on silica gel eluting with (3:2) Hexane-EtOAc.

Product fractions were combined and evaporated to give 498 mg (100%) of desired olefin as a colorless oil.

TLC (4:1) EtOAc-Hexane, Rf diastereomers = 0.44 and 0.51, U.V. and PMA. 96B. (S,Z)-4-[[2-[4'-Fluoro-3,3', 5trimethyl[1,1’-biphenyl]-2-yl]ethenyl ]methoxyphosphiny1]-3-hydroxybutanoic acid, methyl ester A solution of the Part A silyl ether (498 mg, 0.74 mmole) in dry THF (6 ml) was treated with glacial acetic acid (170 μΐ, 2.96 nmole, 4.0 eg.) followed by a 1.0M tetrabutylammonium fluoride solution in THF (2.2 ml, 2.2 mmole, 3.0 eg.) and the clear, colorless mixture stirred at room temperature under argon for 16 hours. TLC indicated a small amount of remaining starting material. Additional HOAc (40 μΐ, 1.0 eg.) and n-Bu^NF (0.74 ml, 1.0 eq.) were added and stirring continued for 6 more hours. The mixture was diluted with ice cold H2O (10 ml) and extracted with EtOAc (2X). The combined extracts were washed with saturated NaHCO^ and brine, dried over anhydrous Na2SO4 and evaporated to give 468 mg of a pale yellow oil. The crude product was purified by flash chromatography on silica gel eluting with (7:3) Hexane-Acetone. Product fractions were combined and evaporated to give 243 mg (76%) of title alcohol as a colorless oil.

TLC (7:3) Hexane-Acetone, Rf = 0.19, U.V. and PMA.

Example 6 (S,Z)-4-[[2-[4’-Fluoro-3,3’,5-trimethyl[1,1’biphenyl ] -2-yl ] e thenyl ]hydroxyphosphinyl ] -3hydroxybutanoic acid, dilithium salt__ A solution of the Example 5 diester (240 mg, 0.552 mmole) in dioxane (7 ml) was treated with a 1.0 N LiOH solution (1.9 ml, 1.9 mmole, 3.5 eq. ) -975 and the stirred mixture heated under argon at 50* (oil bath) for 3 hours. .A white precipitate was evident. The mixture was cooled, diluted with ^0, filtered and evaporated in vacuo to a white solid. The crude solid was dissolved in a minimum amount of H20 and chromatographed on HP-20 resin, eluting with H2<0 followed by (50:50) OH.

Product fractions were combined and evaporated, taken up in H20 (50 ml), filtered, and lyophilized to give 255 mg (100%, based on hydrate weight, MW 457.58) of title di-lithium salt as a white electrostatic solid.

TLC (8:1:1) C^C^-CHgOH-HOAc, Rf = 0.26, U.V. and PMA.

Microanalysis (457.58): moles H2O f°r C21H22O5FPLi2 * 2 Calcd: C, 55.12; H, 5.81; F, 4.15; P, 6.77 Found: C, 55 .35; Ξ, 5.68; F. 4.27; P, 7.09 ^H NMR (400 MHz, CDjOD): 51.24 ppm (2H, multiplet) 2.09 (2H, doublet, J=6.2 Hz) 2.27 (3H, doublet, 27^=1.8 Hz) 2.30 (3H, singlet) 2.38 (3H, singlet) 4.06 (IH, multiplet) 5.87 (IH, d doublet, ^=12,4 Hz, ^=14.3 Hz) 6.87 (IH, s) 6.91 (IH, d doublet, ^=43.4 Hz) 6.98 (2H, triplet) 7.22 (2H, multiplet) 98Example 7 (S)-4-[[2-[3-(4-Fluorophenyl)-1-(1-methylethyl) lH-indol-2-yl ] ethyl] methoxyphosphinyl.] -3-hydroxybutanoic acid, methyl ester_ A. 2-[(4-Fluorophenyl)methyl]-3oxobutanoic acid, ethyl ester Sodium pellets (8.31 g, 362 mmole) were dissolved with mechanical stirring in absolute EtOH (1 liter) and distilled ethyl acetoacetate (47 g, 362 mmole, 1 eq.) was added to the clear solution under argon. The pale yellow mixture was refluxed for 1 hour, cooled to room temperature, treated with 4-fluorobenzyl bromide (75 g, 398 mmole, 1.1 eg.) and the light orange mixture stirred under argon at room temperature for 2.5 hours.· The mixture was concentrated in vacuo.

The residue was partitioned between EtOAc-H2O, the organic phase washed with Ξ^Ο (2X) and brine, dried over anhydrous Na2SO4 and evaporated to give an orange oil. The crude product was purified by vacuum distillation (5 mm Hg) to give 46.47 g (54%) of alkylated product as a clear, colorless liquid with b.p. 142°-144eC.

TLC (7:3) Hex-Et^O, Rf product = 0.31.

NMR (CDC13): 61.20 (3H, t), 2.19 (3H, s), 3.13 (2H, d), 3.73 (IH, t), 4.14 (2H, q) , 6.95 (2H, t), 7.13 (2H, m) ppm. 13C NMR (CD3CN): 614.4, 29.7, 33.7, 62.1, 62.3, 115.3, 116.8, 131.4, 131.9, 145.1 (JC_F=284 Hz), 170.1, 203.5 ppm. -99B. 3-(4-Fluorophenyl)-lH-indole-2carboxvlic acid, ethyl ester Ref. Chemical Abstracts Vol. 33., p, 587 Ref. Helmuth R. et al. J. Chem. Society pp. '6-7, (1927) Ref. Preparative Organic Chemistry 4th Ed. p. 582 (1972) A solution of the Part A ester (46.4 g, 195 mmole) in absolute EtOH (290 ml) at 0°C (ice bath) was treated with an aqueous NaOH solution (23.4 g, in 58 ml H2O), then treated immediately with a benzenediazonium chloride solution (Prep. Org.

Chem, 4th Ed. p. 582 (1972) prepared from aniline (17.8 ml), cone HCI (88 ml), H20 (98 ml) and NaNO2 (13.5 g)) to give a deep orange-red biphasic solution. The mixture was stirred for 1 hour at room temperature, poured into ice cold H2O (500 ml) and extracted with EtOAc (3 x 300 ml). The organic phase was washed with brine, (500 ml), dried over anhydrous Na2SO4 and evaporated in vacuo to give 55.62 g of crude hydrazone intermediate as an orange oil. TLC (7:3) Hex-Et2O, Rf hydrazone = 0.22, UV and PMA. Crude material was used as is for subsequent Fischer cyclization.

A solution of the hydrazone in absolute EtOH (200 ml) was treated with gaseous, bubbling HCI for 30 minutes with intermittent ice bath cooling. The brownish mixture was poured into ice cold H20 (600 ml) and extracted with EtOAc (3X).

The organic phase was washed with (2X) and brine, dried over anhydrous Na2SO4 and evaporated in vacuo to a brownish-tan solid. Trituration with ice cold hexane and filtration afforded 26.74 g 100 (49%) of desired title indole as tan, granular crystals with m.p. = 129°-130°C.

TLC (7:3) Hex-Et20, Rf = 0.26, U.V. and PMA.

Microanalysis for C^^H^ENC^ : Calcd: C, 72.07; H, 4.98; F, 6.71; N, 4.94 Found: C, 72.38; H, 5.05; F, 6.87; N, 5.01 NMR (CDC13): 61.22 ppm (3H, t), 4.29 (22, q), 7.10-7.62 (8E, m), 9.21 (IH, bs) ppm. 13C NMR (CDC13): 614.1, 60.9, 111.8, 114.5, 114.8, 120.9, 121.4, 122.9, 123.1, 125.9, 127.9, 129.5, 132.2 (J. -=7.6 Hz), 135.7, 162.0, 162.2 (J- =244 C £ Hz) ppm.

C. 3-( 4-Fluorophenyl) -1- (1-methylethyl) -1Hindole-2-carhoxylic acid, ethyl ester Ref. Sandoz International Patent #158675 p. 35 (1984) A solution of the Part B indole (26.74 g, 94.4 mmole) in dry, distilled dimethyl acetamide (100 ml) at 0°C (ice bath) was treated portionwise (vigorous gas evolution) with 60% NaH dispersion in mineral oil (4.53 g, 113.3 mmole, 1.2 eq.) and the mixture stirred under argon at 0eC for 1 hour. 2-Iodopropane (85 g, 500 mmole, 5.3 eq. ) was added and the mi xturs allowed to warm'to room temperature under argon and stirred for 1 hour. The mixture was re-cooled to 0eC, treated with another 1.2 eq. of NaH; allowed to stir at room terperature for 1 hour. This procedure was repeated two more times. The final mixture was cooled to 0®C (ice bath) and excess NaH quenched by careful dropwise addition of absolute EtOH (30 ml). The mixture was diluted -101with EtOAc, washed with 5% KHSO^, the aqueous phase back extracted once with EtOAc, the combined EtOAc layers washed with H2O, and brine (2X), dried over anhydrous Na2S04 and evaporated to give 38.54 g of a brown solid. The solid was taken up in hot CH2C12 and starting indole crystallized out with the addition of hexane. 13.88 g of the starting indole was recovered. The mother liquor was evaporated in vacuo to give 22.32 g of a brown oil.

The crude product was purified by flash chromatography on silica gel eluting with hexane followed by (95:5) Hex-Acetone. Product fractions were evaporated to give 6.55 g (21%) (62% corrected yield) of desired title N-isopropyl indole as a yellow oil.

TLC (4:1) Hexane-Acetone, Rf = 0.57, U.V. and PMA.

NMR (CDC13): 61.04 (3H,t), 1.20 (6H, d), 4.17 (2H, q), 5.40 (IH, m), 7.10-7..7 (8H, m) ppm. 13C NMR (CDC13): 613.6, 21.5, 48.7, 53.3, 60.8, 112.7, 114.5, 114.8, 120.3, 121.4, 122.4, 124.3, 125.9, 127.6, 130.8, 131.7 (JC_F=7.5 Hz), 136.2, 162.3 (Jc-F=144 Hz), 163.0 ppm.

D. 3-(4-Fluorophenyl)-1-(1-methylethyl )lS-indole-2-methanol_ Lithium aluminum hydride (1.12 g, 29.6 mmole, 1.5 eq.) was carefully added to a 0°C (ice bath) solution of dry, distilled Et2O (30 ml).

The resulting suspension was treated dropwise over 10 minutes with an ethereal solution of the Part C -102 indole ester (6.42 g, 19.7 mmole .in 20 ml of Et20). After stirring for 30 minutes at 0°C under argon, the mixture was quenched by sequential dropwise addition of E^O (1.1 ml), 15% NaOH (1.1 ml) and H20 (3.4 ml). The resulting suspension was filtered through packed Celite, dried over anhydrous MgS04 and evaporated in vacuo to give .1 g of a yellow foam. The crude product was purified by flash chromatography on. silica gel eluting with (85:15) Hex-Acetone to give 5.08 g (91%) of pure title alcohol as a pale yellow foam.

TLC (7:3) Hex-Acetone, Rf= 0.38, U.V. and PMA. A small sample was crystallized from hexanes to give the title alcohol as white crystals with m.p. = 10le-l03°C.

Microanalysis for C^gH^^OF: Calcd: C, 76.30; H, 6.40; F, 6.71; N, 4.94 Found: C, 76.49; H, 6.46; F, 6.84; N, 4.88 NMR (CDClg): 6 1.60 (1Ξ, t), 1.69 (6H, d), 4.76 (2H, d), 4.93 (1H, m), 7.05-7.62 (8H, m) ppm. 13C NMR (CDClg): δ 20.9, 47.3, 54.8, 113.0, 115.9, 116.3, 116.6, 120.2, 120.6, 122.9, 128.5, 131.6, 132.4, 135.1, 135.7, 163.0 (JC_F=245 Hz) ppm.

E. 3-( 4-Fluoropheny1 )-1-( 1-methylethyl) -1Hindole-2-carboxaldehyde_ A solution of Dess-Martin periodinane (5.9 g, 13.9 mmole, 1.2 eq.) in dry, CH2C12 (3° ml) was -103treated with dry t-butanol (1.3 ml, 13.9 mmole, 1.2 eq.) and the mixture stirred at room temperature under argon for 15 minutes. Part D indole alcohol (3.28 g, 11.6 mmole, 1 eq) in dry CH2C12 (12 ml) was added dropwise over 5 minutes and the yellow mixture stirred under argon at room temperature for 1 hour. The reaction mixture was added to a stirred solution of sodium thiosulfate (15.3 g, 97 mmol, 7 eq.) in freshly 10 prepared 1.0N NaHCO3 (40 ml) and the resulting mixture stirred vigorously for 5 minutes. The organic phase was separated, washed with 1.0N NaHCO3, H20 and brine, dried over anhydrous Na2SO4 and evaporated to give 3.69 g of a yellow oil. , The crude product was purified by flash chromatography on silica gel eluting with (40:1) Hexane-Et2O to give 2.7 g (83%) of pure title aldehyde as a white crystalline solid with m.p. = 88e-89°C.

TLC (7:3) Sex-Acetone, Rf = 0.56, U.V. and PMA.

Microanalysis for C^gH^gFNO: Calcd: C, 76.85; H, 5.73; N, 4.98; F. 6.75 Found: C, 76.91; H, 5.71; N, 4.95; F, 6.76 NMR (CDC13): 61.69 (6Ξ, d), 5.92 (IH, m), 7.10-7.70 (8H, m), 9.80 (IH, s). ppm. 13C NMR (CDC13): 621.4, 48.0, 112.5, 113.2, 115.4, 115.7, 120.8, 122.1, 126.9, 127.0, 132.0, 132.6 (JC_F=7.5 Ez), 183.6 ppm. -104 F. 3-(4-Fluorophenyl)-1-(1-methylethyl)-2(2,2-dibromoethenyl)-15-indole A cooled (-15°C, ice/salt bath) solution of the Part E indole aldehyde (1.84 g, 6.54 mmole) and triphenylphosphine (5.14 g, 19.6 mmole, 3 eq. ) in dry (30 ml) was treated dropwise over 5 minutes with a dry CH2C12 (10 ml) solution of CBr4 (3.25 g, 9.8 mmole, 1.5 eq. ) and the yellow mixture stirred at 15°C under argon for 15 minutes. The mixture was partitioned between saturated NafiCOg and or5an^-c P^ase washed with saturated NaHCO3 and brine, dried over anhydrous Na2SO4 and evaporated to give 9.44 g of a brown oil. The crude product was purified by flash chromatography on silica gel eluting with (95:5) Hexane-CH2C12. Product fractions were evaporated to give 2.87 g (100%) of desired title vinyl dibromide as a yellow oil which crystallized on standing. One recrystallization from ethyl ether gave 2.46 g (86%) of purified product as pale yellow, granular crystals with m.p. 135-137°C.

TLC (7:3) Hex-CH2C12, Rf = 0.45, U.V·. and PMA.

Microanalysis for =19=16^ Br2: Calcd: C, 52.20: H, 3.69; M, 3.20; Br. 36.56 Found: C, 52.25; H, 3.68; N, 3.20; Br, 36.58 NMR (CDC13): δ 1.15 (6H, d), 4.67 (IH, m), 7.10-7.70 (9H, m) ppm. -10513c NMR (CDC13): δ 21.9, 48.6, 98.6, 111.6, 115.3, 115.6, 115.9, 119.9 (Jc_p=7.6 Hz), 122.4, 127.5, 129.3, 130.5, 130.7, 130.9, 135.2, 161.5 (Jc_p=246 Hz ) ppm.

G( 3-(4-Fluorophenyl)-1-(1-methylethyl)-2ethyny1-IH-indo1e A -78°C solution (dry ice/acetone) of the Part F vinyl dibromide (2.395 g, 5.48 mmole) in dry THF (10 ml) under argon was treated dropwise with a 1.6M solution of n-BuLi in hexanes (6.9 ml, .96 mmole, 2 eg.). The resulting mixture was stirred at -78°C for 1 hour then quenched hy dropwise addition of saturated NE4C1 (5 ml). The mixture was allowed to warm to room temperature then extracted with Et2O (2X). The ethereal layers were washed with brine, dried over anhydrous MgS04 and evaporated in vacuo to give 1.893 of a dark brown oil. The crude product was purified by flash chromatography on silica gel (80:1) eluting with (200:1) Hexane-Et2O to give 1.12 g of purified product as a (3.3:1) mixture of acetylene to terminal olefin. This mixture was separated by chromatography on alumina (neutral, activity = II) column eluting with (200:1) Hexane-Et2O.

Evaporation of product fractions gave 900 mg of off-white crystals. One recrystallization from hot hexane gave 700 mg (46%) of purified title acetylene as white needles with m.p. = 105-106°C.

TLC (95:5) Eex-Et20, Rf acetylene = 0.44, Rf olefin = 0.49, U.V. and PMA. 106 Microanalysis for C^gH^gNF: Calcd: C, 82.28; H, 5.81; N, 5.05; F, 6.85 Found: C, 82.70; H, 5.85; N, 5.10; F, 6.62 NMR (CDC13): δΐ.70 (6E, d), 3.5 (1Ξ, s), 5.06 (IH, m), 7.10-7.75 (8E, m) ppm.

B. (S)-4-[[2-[3-(4-Fluorophenyl)-1-(1me thy lethyl ).-lH-indol-2-yl] ethynyl ] methoxyphosphinyl ] -3- (t-butyldiphenylsilyloxy)butanoic acid, methyl ester A -78°C (dry ice/acetone) solution of the Part G acetylene (678 mg, 244 mmole, 1.0 eq.) in dry THF (6 ml) under argon was treated dropwise with a 1.6M solution of n-BuLi in hexanes (1.53 ml, 2.44 mmole, 1.0 eq.). After 30 minutes at -78°C, the mixture was transferred by cannula to a -78°C solution of Example 1 Part F phosphonochloridate (~4.3 mmole, 1.75 eq. ) in dry THF (5 ml). The dark brown mixture was stirred at -78eC for 30 minutes then quenched by dropwise addition of saturated NH^Cl (5 ml) and allowed to warm to room temperature. The mixture was extracted with Et2O (2X), washed with saturated NH^Cl and brine, dried over anhydrous MgSO^ and evaporated in vacuo to give 2.567 g of a brown-red oil. The crude oil was purified by flash chromatography on silica gel eluting with (3:2) Hexane-EtOAc to give 756 mg (44%) of desired title acetylenic phosphinate as a dark yellow oil.

TLC (7:3) Hex-Acetone, Rf - 0.27, U.V. and PMA. -107NMR (CDC13): δ 1.0 (9H, s), 1.64 (6E, d), 2.10-2.90 (4H, m), 3.56 (3H, s), 3.58 (3H, dd), 4.6 (1H, bm), 4.90 (IH, m), 7.05-7.55 (18Ξ, m) ppm 13 C NMR (CDC13): δ 14.2, 19.1, 21.0, 26.7, 27.8, 37.5, 39.2, 42.2, 45.1, 49.2, 51.4, 51.9, 60.3, 65.5 (J =15.1 Hz), 88.1, 91.2, 98.3, 111.3, 115.3, 115.6, 120.8 (J=5.7 Hz), 122.3, 124.9, 125.9, 126.4, 127.6, 129.2, 130.7, 133.0, 135.7, 136.1, 170.9 ppm.

J. (S)-4-[[2-[3-(4-Fluorophenyl)-1-(1methy1 ethyl) - IH- indo 1 - 2 -y 1 ] ethyl ] methoxyphosphinyl ] -3- (t-butyl diphenyl15 silyl oxy)butanoic acid, methyl ester An argon purged solution of the Part H acetylenic phosphinate (422 mg) in σ^ΟΗ (9 ml) was treated with 10% Pt/C (420 mg) and the resulting mixture shaken on a Parr apparatus for 2 hours under 40 psi of hydrogen. Catalyst was removed by filtration through Celite and the filtrate evaporated to give 380 (90%) of title indole phosphinate as a yellow foam.

TLC (4:1) EtOAc-Hex, Rf = 0.27 U.V. and PMA.

NMR (CDC13): δ 1.00 (9H, s), 1.63 (6Ξ, d), 1.5-2.0 (2H, m), 2.20 (IH, m), 2.58-3.00 (5H, m), 3.44 (3Ξ, dd, JH_p=10.6 Hz), 3.61 (3Ξ, s), 4.52 (2H, m), 7.07-7.66 (18H, m) ppm. 10813C NMR (CDC13): 612.6, 16.8, 17.2, 19.1, 21.5, 26.7, 36.0, 42.1, 47.2, 50.9, 51.4, 65.8; 111.8, 115.3, 119.1, 121.1, 127.7, 128.3, 129.9, 131.2, 131.3, 132.8, 133.4, 134.3, 134.8, 135.7, 171.3 ppm.

K. (S)-4-[[2-[3-(4-Fluorophenyl)-l-(lmethylethyl )-lH-indol-2-yl] ethyl ] methoxyphosphinyl ] -3 -hydroxybutanoic acid„ methyl ester A solution of the Part J silyl ether (379 mg, 0.531 mmole) in dry TEF (5 ml) was treated successively with glacial HOAc (120 μΐ, 2.12 mmole, 4 eq. ) and a 1.0M tetrabutylammonium fluoride solution in THF (1.6 ml, 1.6 mmole, 3 eq. ) and the resulting solution stirred overnight under argon at room temperature. The mixture was diluted with ice cold H2O (10 ml), extracted with EtOAc (2X), the organic phase washed with saturated NaHCO3 and brine then dried over anhydrous Na2SO4 and evaporated to give 408 mg of a yellow oil. The crude product was purified by flash chromatography on silica gel eluting with (7:3) Acetone-Hexane. Product fractions were evaporated to give 197 mg (78%) of desired title alcohol as a white foam.

TLC (1:1) Hexane-Acetone, Rf = 0.09 U.V and PMA.

NMR (CDC13): 6 1.68 (6Ξ, d), 1.80-2.0 (2H, m), 2.10 (2H, m), 2.58 (2Ξ, m), 3.08 (2H, m), 3.63 (3H, dd, JH_p=10.1 Hz), 3.70 (3H, d), 3.96 (IH, t), 4.35+4.49 (IH, 2 broad multiplets), 4.67 (IH, m), 7.0-7.6 (8H, m) ppm. 10913C NMR (CDC13): 617.6, 17.7, 21.4, 29.2, 29.4, 33.2, 33.3, 34.6, 41.6, 41.8, 42.0, 42.2, 47.3, 50.9, 51.7, 63.4, 111.8, 113.5, 115.2, 115.5, 119.0, 119.4, 121.1, 128.3, 131.3, 131.5, 134.2, 134.8, 161.5 JC_F=244.1 Hz), 172.1 ppm.

Example 8 (S)-4-[[2-[3-(4-Fluorophenyl)-1-(1-methylphenyl)ΙΗ-indol -2 -yl ] ethyl ] hydroxyphosphinyl ] -3 -hydroxy10 butanoic acid, dilithium salt_ A stirred solution of the Example 7 diester (197 mg, 0.414 mmole) in dioxane (5 ml) was treated with 1.0N LiOH (1.45 ml, 3.5 eg.) and the resulting white suspension was heated at 55°C (oil bath) under argon for 40 minutes. The mixture was cooled, diluted with H2O, filtered, evaporated in vacuo. The residue was taken up in a minimum amount of H2O and chromatographed on HP-20 resin, eluting with H20 followed by (50:50) H2O-CH3OH.

Product fractions were combined and evaporated.

The glassy residue was taken up in H2O (50 ml), filtered and lyophilized to give 178 mg (85%, based on hydrate weight) of pure title di-lithium salt as a white solid.

Microanalysis for C23H25NFP-2Li + 2.52 moles H20 (MW 504.71): Calcd: C, 54.73; H, 6.00; N, 2.78; F, 3.76; P, 6.14 Found: C, 54.62; H, 5.67; N, 2.90; F, 3.61; P, 6.06 ^H NMR (400 MHz, CDC13): (6E, dd, J=5.8 Hz) (2H, multiplet) (2H, multiplet) (2H, multiplet) δ 1.69 ppm 1.71 1.93 2.38 3.06 (2H, quartet) 4.32 (IH, multiplet) 4.87 (IH, multiplet) 6.97 (IH, dt, J=0.7 Hz) 7.07 (IH, dt, Jsl.l Hz) 7.16 (2H, t) 7.41 (3H, m) 7.57 (IH, 1/2 AB quartet) (S)-4-[[2-[ [1,11 Example 9 -Biphenyl]-2-yl]ethyl]methoxy- phosphinyl 1-3-hydroxybutanoic acid, methvl este: A. Biphenyl-2-carboxaldehyde Dess-Martin periodinane (27.64 g, 65.2 mmol) was stirred under argon atmosphere with 150 ml of Dry t-BuOH (8.0 ml) was added to the stirring solution, and this mixture was stirred for 10 minutes at room temperature. A CH2C12 solution (20 ml) of biphenyl-2-methanol (10 g, 54.3 mmol) was added dropwise over 15 minutes. After the addition was complete, the reaction was allowed to stir at room temperature. After stirring for 1 hour at room temperature, 600 ml of Et2O (anhydrous) was added to the reaction followed by IN NaOH (225 ml). After 10 minutes, the resulting slurry was filtered, and the filter cake was washed with Et2O. The filtrate was washed 2X with 250 ml portions of IN NaOH. The -inorganic layer was dried over MgSO^ and filtered to give a yellow oil (10 g) after solvent removal. Purification by flash (silica gel, l:10/Et2O:Hexane) provided title aldehyde (9.58 g, 97%) as a colorless oil.

TLC (1/9 EtOAc/Hexane, silica gel) Rf = 0.29 IR (film) 3065, 3025, 2850, 2760, 1685, 1700, 1600, 1470, 1450, 1395 cm1 NMR (270 MHZ) (CDCl3) 58.00 (d, 1, J=70. Hz), 7.60 (m, 1), 7.40 (m, 7).

Mass Spec m/e 183 (M++H).

' B. 2-(2,2-Dihromoe thenyl) - f 1,11 -b inhenvl] A solution of Part A aldehyde (2.0 g, 11 mmol) in CH2C12 (60 ml) was placed under argon atmosphere and cooled to -10°C. Triphenylphosphine (9.21 g, 35 mmol) was added, and this mixture was stirred until all of the solid dissolved. To the resulting solution at -10°C was added over 15 minutes a CH2C12 (40 ml) solution of CBr4 (5.5 g, 16.5 mmol). The reaction was stirred at -10°C for 1 hour 15 minutes, and then it was quenched at -10°C with 50 ml of saturated aqueous NaHCO3 solution. The CH2C12 and aqueous layers were separated and the agueous layer was extracted IX with CH2C12. The combined CH2C12 extracts were washed IX with saturated aqueous NaHCO3 solution and IX with saturated aqueous NaCl solution. The CH2C12 extract was dried over Na2SO4 and evaporated to dryness . The crude product was -112purified by . flash chromatography eluting with hexane to give the title dibromide as an off white solid (2.45 g, 66%).

TLC (5:95/EtOAc:Hexane silica gel) Rf = 0.47.

IR (CHC13) 3064, 3011, 1596, 1473, 1450, 1435, 889, 860, 702 cm1 NMR (270 MHz) (CDC13) 67.75 (m, 1), 7.35 (m, 8), 7.20 (s, 1) 13C NMR (67.0 MHz) (CDCl3) 6141.06, 140.08, 137.49, 133.83, 129.81, 129.45, 129.17, 128.61, 128.22, 127.50, 127.08, 90.78 Mass Spec m/e 337/339/341 (M++H) C. 2-Ethynyl-fl, 1 *-biphenyl] A THF (35 ml) solution of Part B vinyl dibromide (2.31 g, 6.9 mmol) was cooled to -78°C under an argon atmosphere. With stirring at -78°C, n-BuLi (5.52 ml of 2.5 M solution in hexane) was added over 10 minutes to the vinyl dibromide. On completion of the n-BuLi addition, the reaction mixture became deep purple. After stirring at -78°C for 2 hours 45 minutes, the reaction was quenched with saturated aqueous NE^Cl solution. After the quenched reaction was warmed to room temperature, the THF was removed from the reaction mixture and the resulting material was diluted with H2O and extracted 3X with « Et2O/hexane. The organic extract was dried over -113MgS04 and filtered to give 1.3 g of a yellow oil. Purification by flash chromatography eluting with 1% Et2O/hexane provided the desired title acetylene (1.04 g, 88%).

TLC (100% Hexane, silica gel) Rf = 0.16 IR (film) 3287, 3061, 3026, 1474, 1449, 1432, 1008, 775, 758, 738 cm1 NMR (270 MHZ) (CDC13) δ 7.68 (m, 3), 7.35 (m, 6), 3.00 (s, 1) 13 C NMR (67.8 MHZ) (CDC13) 6144.40, 140.22, 133.83, 129.56, 129.20, 128.92, 127.95, 127.49, 126.94, 120.44, 83.08, 80.15 Mass Spec m/e 179 (M++H).

D. (S)-4-[[2-[[l,l’-Biphenyl]-2-yl]ethynyl ] methoxyphosphinyl ] -3-( t-butyldipehnylsilyloxy)butanoic acid, methyl ester Part C acetylene (0.332 g, 1.86 mmol) was stirred at -78°C (under argon atmosphere and in 10 ml of THF. Over 5 minutes, n-BuLi (0.75 ml of a 2.5 M solution in hexane) was added to the acetylene solution. The reaction was stirred at -78°C for 1 hour warmed to 0eC and stirred for 10 minutes and then recooled to -78°C. The acetylenic anion solution was then added dropwise over 8 minutes to a 10 ml THF solution of the Example 1 Part F phosphonochloridate (2.98 mmol) 114which had been cooled to -78°C under an argon atmosphere. After the addition was complete, the reaction was stirred at -78°C for 1 hour and then quenched by the addition of saturated aqueous NE4C1 solution. The quenched reaction was warmed to room temperature, diluted with half-saturated aqueous NaCl solution and extracted 3X with Et^O. The combined Et20 extracts were washed with saturated aqueous NaECO3 and saturated aqueous NaCl solutions. The Et^O layer was dried over MgS04 and evaporated to give 1.5 g of a yellow oil. Purification by flash chromatography eluting with 5:1:4 hexane:toluene:EtOAc gave the title acetylenic phosphinate (0.543 g, 48%).

TLC (5:1:4 hexane:toluene:EtOAc, silica gel) Rf = 0.20.

IR (CHC13) 3070, 3053, 3035, 3000, 2952, 2934, 2896, 2859, 2178, 1735, 1474, 1448, 1436, 1429 cm1 NMR (270 MHZ) CDCl3) 57.65 (m, 3), 7.65-7.28 (m, 16), 4.55 (m, 1), 3.55 (d, 3), 3.40 (dd, 3), 2.80 (m, 1), 2.55 (m, 1), 2.35 (m, 1) 2,08 (m, 1), 1.00 (s, 9) 13C (67.8 MZ) (CDC13) 5170.83 133.86, , 145.29, 145.19, 139.22, 132.86, 135.95, 130.57, 135.59 129.56, 133.75, 133.16, 30 129.34, 128.81, 127.92, 127.75, 127.44, 127.39, 126.94, 117.90, 100.91, 100.38, 100.18, 84.51, 115 81.60, 65.53, 65.42, 60.06, 51.61, 51.50, 51.11, 42.07, 41.90, 38.86, 37.16, 26.56, 20.75, 18.97, 13.97 Mass Spec m/e 611 (M++S) E. (S)-4-[[2-[[1,1'-Biphenyl]-2-yl]ethyl]methoxyphosphinyl]-(t-butyldiphenylsilyloxy)butanoic acid, methyl ester Argon was bubbled through a methanol (8 ml) solution of Part D acetylenic phosphinate (0.515 g, 0.85 mmol) for 10 minutes. Addition of 10% Pd/C (0.190 g) to the acetylene solution was followed by Parr hydrogenation at 43 psi. After shaking for. 25 hours at 43 psi, the methanol solution was filtered through Celite and the filtrated evaporated to give the title phosphinate (0.510 g, 98%) as. a colorless oil.

TLC (4:1 EtOAc: hexane) Rf = 0.21 IR (CHC13) 3071, 3054, 2998, 2954, 2934, 2902, 2859, 1734,' 1477, 1462, 1448, 1438, 1428 cm’1 NMR (270 MHz) (CDCl3) 67.65 (m, 3), 7.55-7.00 (m, 16), 4.45 (m, 1), 3.58 (s, 3), 3.30-3.20 (2 doublets, 3, J = 11 Hz), 2.88 (m, 1), 2.60 (m, 3), 2.17-1.80 (m, 1), 1.80-1.30 (m, 1), 1.00 (s, 3). 13C NMR (67.8 MH) (Diagnostic peaks) (CDC13) 6171.33, 65.78, 51.36, 42.24, 26.75 -116Mass Spec m/e 615 (M++H) F. (s )-4-[[2- [[1,1’ -Biphenyl]-2-yl]ethyl]methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester A TEF (10 ml) solution of Part E phosphinate (0.500 g, 0.82 mmol) was stirred under an argon atmosphere with HOAc (0.19 ml, 3.3 mmol). At room temperature, nBu^ NF (2.45 ml, 1.0 M solution TEF) was added dropwise. The reaction was stirred at room temperature for 23 hours and then quenched with 15 ml of ice water. The aqueous layer was extracted 3X with EtOAc. The combined organic solutions were washed 2X with saturated agueous NaHCO^ solution and IX with saturated aqueous NaCl solution. The organic layer was dried over Na2SO4 and evaporated to give 0.437 g of a colorless oil. Purification by flash chromatography eluting with 7:3 acetone:hexane gave the title alcohol (0.247 g, 81%)' as a colorless oil.

TLC (7:3 acetone:hexane, silica gel) Rf = 0.22 IR (CHC13) 3600-3171 (hr), 3064, 3009, 2954, 1731, 1479, 1439, 1237, 1180, 1042, 999 cm1 NMR (270 MHz) (CDCl3) δ 7.50-7.10 (m, 9), 4.50-4.15 (m, 1), 3.70 (s, 3), 3.53 & 3.50 (2 doublets, 3, J=ll Hz), 2.88 (m, 2), 2.50 (m, 2), 2.00-1.60 (m, 4) -11713 C NMR (67.8 MHz) (CDCl3) 6171.55, 171.49, 141.39, 141.00, 138.10, 137.88, 129.95, 128.81, 128.06, 127.53, 26.83, 126.22, 63.08, 63.02, 62 .85, 51.39, 50.58, 50.47, 42.35, 5 42.15, 42.07, 41 .87, 34.31, 33.06, 33.00, 30.77, 30.52, 29.49, 29 .21, 25.41 Mass Spec m/e 377 (M++H) Example 10 (S)—4-{[2—[[1, 1 ’ -BiphenylJ-2-yl] ethyl] hydroxyphosphinyl 1-3-hydroxybutanoic acid, dilithium salt Example 9 diester (0.239 g, 0.64 mmol) was stirred in dioxane (6.5 ml) under argon .15 atomsphere. At room temperature, 1.9 ml of 1.0 M LiOH solution was added. This mixture was stirred at 55°C. After stirring for 2.5 hours, the reaction was cooled to room temperature, and the dioxane and most of the H2O were removed by rotary evaporation. Purification by HP-20 chromatography (18 cm x 2.5 cm) eluting first with 100% H2O and then with 1:1 MeOH:H20 gave the title dilithium salt (0.180 g, 79%) as a white solid.

TLC (8:1:1 CH2Cl2 :MeOH:AcOH) Rf = 0.16 (7:2:1 nPrOH:NH3 :H2O) Rf = 0.37 118Example 11 (R)-4-[[(E)-2-[4’ -Fluoro-3,3 ’ , 5-trimethyl [1,1'biphenyl ] -2-yl ] ethenyl ] hydroxypho sphinyl ] -3hydroxybutanoic acid, dilithium salt A. (E)-Tributyl[2-[4’-fluoro-3,3 ' ,5trimethyl [1,1' -biphenyl ] -2-yl ] ethenvl ] tin_ Ref. Miftakov, M.A. et al. Synthesis (Comm.) pp. 496-499 (1985). A mixture of 2-ethynyl-4'fluoro-3,3 ',5-trimethyl[1,1'-biphenyl] (1.7 g, 7.13 mmole) and (n-C4Hg)3SnH (2.9 ml, 10.7 mmole, 1.5 eg.) was treated with AIBN (7.0 mg, 0.426 mmole) and the solution heated rapidly to 120eC (oil bath) under argon. After 15 minutes at 120°C an additional quantity of (n-C4Hg)3SnH (0.39 ml, 1.43 mmole, 0.2 eq. ) was added and heating continued for a total of 3 hours. The yellow mixture was cooled and purified by Kugelrohr distillation at 0.1 mmHg, 240°C to give 3.073 g (81%) of title vinyl stannane as a colorless liquid.

TLC hexane, R^ product = 0.45, UV & PMA. Product is unstable on silica gel (streaks to baseline). 13C NMR (67.5 MHz, CDC13): 9.5, 13.6, 14.5, 20.9, 21.1, 27.2, 27.6, 114.0, 114.3, 123.6, 123.9, 128.8, 130.4, 133.0, 135.6, 136.1, 138.1, 140.0, 144.4, 160.3 (JCF=244 ^) ppm. δΟ.8-1.5 ppm (27 Η, m, Sn(Bu)3) 2.27, 2.31, 2.36 (9E, 3 singlets, aromatic 6.05 (IE, d, J=20 Hz, PhCH=CHSn) 6.68 (IH, d, J=20 Hz, PhCH=CHSn) 6.90-7.13 (5Ξ, m, aromatic protons) Β. (Ξ)-4’-Fluoro-2-(2-iodoethenyl)-3,3',5trimethyl [1,11 -biphenyl ~|_ A solution of the Part A vinyl stannane (1.537 g, 2.89 mmole) in dry Et2O (20 ml) was treated with iodine (734 mg, 2.9 mmole, 1 eq. ) and the brownish solution stirred at room temperature under argon for 2 hours. The mixture was washed with saturated sodium thiosulfate, 10% NE^OH and’ brine, dried over anhydrous MgS04 and evaporated to give 1.639 g of a yellow oil. The crude product was purified by flash chromatography on silica gel (160 gm) eluting with hexane. Combined product fractions gave 832 mg (65%) of desired pure title trans vinyl iodide as a pale yellow oil which slowly crystallized on standing, m.p. 53-55eC.

TLC (hexane) R^ trans olefin = 0.31, (R^ cis olefin = 0.26), UV & PMA ^H NMR (270 MHz): δ2.30 & 2.32 ppm (9H, 2 singlets, aromatic methyls 6.05 6.92-7.10 7.24 (IH, d. J=15 HZ, -HC=CHI) (5Ξ, m, aromatic H's) (IH, d, J=15 Hz, PhCH=CHI) -12013C NMR (67.5 MHZ): 14.6, 21.0, 21.1, 81.0 (=CH-I), 114.4, 114.7, 124.2, 124.5, 128.5, 128.7, 130.5, 132.7, 132.8, 133.2, 135.8, 137.2, 140.1, 143.1 (PhCH=CHI), 161.0 (JCJ.=244 Hz) ppm.

Note: An ^H NMR (CDC13< 270 MHz) on mixed fractions indicated the close running impurity to be the cis vinyl iodide. 66.54 ppm (IH, d, JWaBb = 7.9 Hz (PhOT^CE^-I)) C. (R)-3-[[(1,1-Dimethylethyl)diphenylsilyl ] oxy] -4- [ [(E)-2-[4’-fluoro-3,3',5trimethyl [1,1’ -biphenyl ] -2-yl ] ethenyl ] methoxyphosphinyl]butanoic acid, methyl ester_ A -78°C (dry ice/acetone) solution of the Part B vinyl iodide (812 mg, 2.22 mmole) in dry THP (6 ml) was treated dropwise via syringe with a 1.6 M n-BuLi solution in hexanes (1.4 ml, 2.2 mmole, 1 eq. ) and the pale yellow mixture stirred under argon at -78°C for 45 minutes. The anion was then transferred by cannula dropwise over 10 minutes directly into a -78°C solution of the Example 1 Part F phosphonochloridate (~3.5 mmole, 1.58 eq) in dry THF (6 ml). The yellow mixture was stirred for 30 minutes at -78°C then warmed to room temperature. The mixture was quenched at room t f»mppr a tai re by the addition of saturated NH4C1 (5 ml). The mixture was diluted with Et2O, the ethereal layer washed with saturated NH4C1 and brine, then dried over anhydrous MgS04 and evaporated to give 2.083 g of a yellow oil. The crude product was purified by flash chromatography -121on silica gel eluting with (85:15) Hex-acetone. Product fractions were combined and evaporated to give 249 mg (17%) of the desired trans olefinic phosphinate as a pale yellow oil. · NMR indicated approximately at (1:1) mixture of diastereomers at phosphorus. TLC (7:3) Hex-acetone, R^ = 0.35, UV & PMA.

NMR: . 0 n 63.27 ppm (3H, d, = 11.6 Hz, -POCH^) 3.57 & 3.60 (3H, 2 singlets, diastereomers, -co2ch3) 4.33 & 4.50 (IH, 2 multiplets, diastereomers, -CH2CH(0SiR3)CH2-) 4.84 & 5.25 (IH, 2 dd’s, diastereomers, JHaHb = 17·9 JHa-?=25·3 o II PhCHb=CH -P-) * D. (R)-4-[[(E)-2-[4’-Fluoro-3,3',5trimethyl [1,1* -biphenyl ] -2-yl ] ethenyl ] methoxyphosphinyl]-3-hydroxybutanoic acid, methyl ester_ A solution of the Part C silyl ether (249 mg, 0.370 mmole) in THF (5.0 ml) was treated successively with glacial HOAc (85 μΐ, 1.48 mmoles, 4.0 eq.) and a 1.0 M (n-C4Hg)4NF solution in THF (1.1 ml, 1.1 mmole, 3.0 eq) and the yellow mixture was stirred overnight at room temperature under argon. The mixture was diluted with cold H2O (10 ml) and extracted with EtOAc. The organic phase was washed with saturated NaHC03 and brine 122then dried over anhydrous Na2SO4 and evaporated to give 243 mg of a yellow oil. The crude product was purified by flash chromatography on silica gel eluting with (55:45) Hex-acetone.

Product fractions were combined and evaporated to give 121 mg (75%) of desired title hydroxy diester as a colorless viscous oil.

TLC (6:4) Acetone-Hex, Rf = 0.26, UV & PMA.

NMR: II 51.8-2.06 ppm (2E, m, CH^O-PCS.,-) 2.30, 2.35, 2.40 (9H, 3 singlets, aromatic 2.40-2.60 3.50+3.55 3.64 3.77+3.84 4.28+4.38 .52 CH/s) (2H, m, -CH(OH)CT2CO2CH3) (3H, 2 doublets, diastereomers, O li -PO^, Jh_?=12 Hz) (3H, s, -CO2^) (IH, 2 doublets, di astereomers, -CH(OH)-) (IH, 2 broad multiplets, -CH(OH)-) (IH, 2 dd's, diastereomers coupling & Jgp coupling, PhCH^oa-Pioc^)-) -12310 6.90-7.10 7.50 (5H, aromatic protons) (1H, multiplet, diastereomers & coupling JHP coupling, II PhCH=CH-P(OCH3)-) E. (R)-4-[ [ (E)-2-[4'-Fluoro-3,3 * , 5trimethyl[1,1’-biphenyl]-2-yl]ethenyl]hydroxyphosphinyl]-3-hydroxybutanoic · acid, dilithium salt A solution of Part D hydroxy diester (121 mg, 0.279 mmole) in dioxane (2 ml) was treated with excess 1.0 N LiOH (0.98 mg, 0.98 mmole, 3.5 eq) and the clear pale yellow mixture stirred under argon at 50°C (oil bath) for 1.5 hours. The mixture was cooled, diluted with H20, filtered and evaporated in vacuo. The residue was taken up in a min j mpp amount of H2O and chromatographed on ΞΡ-20 resin (8 cm bed, 25 mm column diameter) eluting sequentially with H2O (200 ml), (80:20) H2O-CH3OH, and finally (60:40) H^-CH^OH. Product fractions were evaporated in vacuo, taken up in H2O (50 ml) and lyophilized to give 91 mg of pure title dilithium salt product as a hygroscopic, white lyophilate.

TLC (8:1:1) C^CH^C^OH-HOAc, Rf = 0.19, UV & PMA. -124Examples 12 to 24 Following the procedures as outlined heretofore and as described in the previous working Examples, the following additional compounds may be prepared.

H ii I x r-?-ch2-c-ch2-co2-r X OH 2 V - 125ex.

No. R Ζ 17. OLi -CH CH /~2 2 -CH2CH2- Li -CH-CH- H -CSC126 21. OH -CII CH 2 2 127 -128Examole 25 (S)-4-(Hy dr oxymethoxypho sphinyl)-3- [ [ (1,1-dimethylethyl) diphenyls ilyl ] oxyjbutanoic acid, methyl ester, dicyclohexylamine (1:1) salt / A. (S) -4-jDiisopropyloxyphosphinyl) -3[ [ (1,1-dimethylethyl)diphenylsilyl ] oxy]-butanoic acid, methyl ester_ The Example 1, Part F(2) iodide (45.1 mmol., 21.70 g) was stirred under high vacuum for 30 minutes. Freshly distilled triisopropyl phosphite (0.451 mol., 93.92 g, 113.37 ml.) was added in one portion and the reaction mixture was stirred under argon and heated in a 155°C oil bath for 16.5 hours. The mixture was then cooled to room temperature. Excess triisopropyl phosphite and volatile reaction products were removed by short path distillation (10 mm Hg) followed by Kugelrohr distillation (0.50 mm Hg, 100®C, 8 hours). The product was further purified via flash chromatography (95 mm di am. column, 6/Merck silica gel, 6/3/1 Hexane/acetone/toluene eluent, 2/min flow rate, 50 ml fractions) to afford 17.68 g (33.96 mmol, 75% yield) of the title isopropylphosphonate as a clear viscous oil.

TLC: Silica gel R^=0.32 (6:3:1 Hexane/acetone toluene) ^HNMR: (270 ΜΗχ, CDC13) δ 7.70-7.65 (m,4H) 7.45-7.35 (m,6H) 4.57-4.44 (m,3H) 3.59 (s,3H) 2.94 and 2.88 (2xd, IH J=3.7 Hz) 1292.65 and 2.60 (2xd, IH J=7.4 Hz) 2.24-1.87 (Series of m, 2H) 1.19 and 1.12 (2xd, 12Ξ J=6.3 Hz) 1.01 (s, 9H) B. (S)-4-(Hydroxymethoxyphosphinyl)-3[ [ (1,1-dimethylethyl) diphenylsilyl ] oxyjbutanoic acid, methyl ester, dicyclohexylamine (1:1) salt_ The Part A isopropyl phosphonate (30.5 mmol, 10.66 g) was stirred under argon, at room temperature, in 80 ml of dry CH2Cl2· This, solution was treated dropwise (5 min) with bistrimethylsilyltrifluoroacetamide (BSTFA) (32.8 mmol, 8.'44 g, 8.71 ml), followed by dropwise addition (10 min) of trimethylsilylbromide (TMSBr) (51.3 mmol, 7.84 g, 6.75 ml). After stirring at room temperature for 20 hours, the reaction mixture was quenched with 200 ml of 5% aqueous KHS04 and stirred vigorously for 15 minutes. The aqueous layer was extracted 3 times with ethylacetate. The organic extracts were combined, washed once with brine, dried over Na2S04 and concentrated in vacuo. The residue was azeotroped 2 times with 50 ml of toluene. The precipitate which formed was suspended in toluene and filtered. The filtrate was concentrated and the azeotrope/filter process repeated. The resulting filtrate, was evaporated in vacuo and then pumped under high vacuum for 5 hours. The resulting viscous cleax oil was stirred under argon, at room tempera+uT-p, in 50 ml of dry pyridine. This solution was treated in one portion with -130dicyclohexylcarbodiimide (DCC) (22.6 mmol, 4.65 g), followed by addition of methanol (41.0 mmol, 1.31 g, 1.67 ml). After stirring at room temperature for 20 hours, the reaction mixture was filtered through a celite pad in a sintered glass funnel.

The celite was washed with ethyl acetate and the combined filtrates were evaporated in vacuo. The residue was redissolved in ethyl acetate and washed 2 times with 5% aqueous KESO4 and once with brine. The organic extract was dried over Na2SO4# filtered, the filtrate concentrated and azeotroped 2 times with toluene, suspended in toluene and filtered. The resulting filtrate was again concentrated, azeotroped, filtered and the filtrate evaporated in vacuo and placed under high vacuum for 6 hours to afford the phosphonate monoester as a clear viscous oil (10.2 g, >100% yield). TLC: silica gel R^=0.50 (7:2:1 nPr0H/NH40H/H20). The phosphonate monoester [1.21 g was pumped under high vacuum for 4 hours, affording 1.16 g (2.57 mmol)] was dissolved in 10 ml of dry ethyl ether and treated dropwise with dicyclohgxylamine (2.65 mmol, 0.481 g, 0.528 ml). The resulting homogeneous solution sat at room temperature for 7 hours resulting in significant crystal formation. The mixture was stored at -20°C for 16 hours and then warmed to room temperature and filtered. The crystals were washed with cold, dry ethyl ether and then pumped under high vacuum over P20g hours. The crystals were subsequently pumped under high vacuum at 45°C for 4 hours, affording 1.25 g (1.98 -13110 mmol, 77% yield) of the title dicyclohexylamine salt as a white powdery solid, m.p. 155-156°C. TLC: Silica gel Rf=0.57 (20% MeOH/CH2Cl2) Ή NMR: (270 ME2, CDC13) δ 7.71-7.65 (m, 4H) 7.40-7.32 (m, 6E) 4.02 (m, IH) 3.52 (s, 3H) 3.28 and 3.22 (m, 1H) 3.11 (d, 3H J=ll Hz) 2.77-2.64 (m, *2H) 2.62 -2.56 (m, IH) 1.92 -1.08 (Series of m, 22Ξ) 1.00 (S, 9H) Mass Spec: (FAB) 632 (M&H)+ IR:(KBr) 3466-3457 (broad) 3046, 3016, 2997, 2937, 2858, 2836, 2798, 2721, 2704, 2633, 2533, 2447, 1736, 1449, 1435, 1426, 1379, 1243, 1231, 1191, 1107, 1074, 1061, 1051, 820 CM-1 Anal Calcd for C22H3i °6PS2’C12H23N: C,64.63; H,8.61; N,2.22 Found: C, 64.51; H, 8.49; N, 2.18 Example 26 (E)-4-[[2-[4’-Fluoro-3, 3',5-trimethyl[1,1’biphenyl]-2-yl]ethenyljhdroxyphosphinyl]-3hydroxybutanoic acid, dilithium salt_ A. [2-[4*-Fluoro-3,3',5-trimethyl[1,1’biphenyl]-2-yl]-2-hydroxyethyl]phosphonic acid, dimethyl ester A -78°C (CO2/acetone) solution of dimethylmethylphosphonate (1.8 ml, 16.5 mmole, 1.6 -132eq) in dry TEF (20 ml) was treated dropwise over 20 minutes with a 1.6 M n-butylithium solution in hexanes (9.7 ml, 15.5 mmole, 1.5 eq) and the resulting white suspension stirred under argon at -78°C for 60 minutes. Example 1, Fart C biphenyl aldehyde (2.5 g, 10.3 mmole, 1 eg) in dry TEF (10 ml) was then added dropwise over 15 minutes at -78°C to give a pale orange suspension. After 30 minutes at -78°C, the mixture was quenched by dropwise addition of sat'd NE^Cl (10 ml) and allowed to warm to room temperature. The mixture was partitioned between ethyl acetate and H2O, the organic phase washed with brine, dried over anydrous Na2SO4 and evaporated in vacuo to give 4.127 g of a yellow oil which slowly crystallized on standing. The crystals were triturated'with hexanes to give after filtration and drying in vacuo 3.38 g (89.4%) of pure title hydroxy phosphonate as white needles with mp = 98e-100°C.

An additional 233 mg (3.613 g total, yield = 95.6%) of pure title compound was recovered by a flash chromatography of the mother liquor (603 mg) on LPS-1 silica gel (40:1) eluting with (7:3) hexane-acetone. TLC (1:1) hexane-acetone, Rf=0.33, UV + PMA.

Anal Calcd for ci9H24°4I’F: C, 62.29; H, 6.60; F, 5.19; P, 8.45 Found: C, 62.66; H, 6.56; F, 5.03; P, 8.68 133B. [2-[4’-Fluoro-3,3 * ,5-trimethyl[1,1’biphenyl]-2-yl]ethenyl]phosphonic acid, dimethyl ester A solution of the Part A hydroxy 5 phosphonate (3.513 g, 9.6 mmole) in dry (4A sieves) toluene (15 ml) was treated with pTsOH-1 H2O (91 mg, 0.48 mmole, 0.05 eq) and refluxed through a Soxhlet apparatus containing 4A sieves for 16 hours under argon. Additional pTsOH-H2O was added during the course of the reaction at the following time intervals: 3.5 hours (91 mg), 5.0 hours (91 mg), and 6.5 hours (91 mg). The mixture was cooled, diluted with ethyl acetate and washed with sat’d NaHC03 to give an aqueous phase, an organic phase and an oily layer between phases.

The aqueous phase and oily layer were collected, washed with ethyl acetate, the ethyl acetate layer washed with sat’d NaHCO3 and put aside. The 2 bicarbonate washes were acidified with cone. HCI, extracted with ethyl acetate, the organic phase washed with' brine, dried over anhydrous Na2S04 and evaporated to give 520 mg of recovered phosphonic acid, mono methyl ester. The di ester was regenerated by dissolving the oil in trimethyl orthoformate (5 ml) and refluxing the mixture under argon for 4 hours. Excess formate was removed in vacuo to give a yellow oil which was taken up in ethyl acetate and combined with the original neutral organic phase. The ethyl acetate layer was washed with brine, dried over anhydrous Na2SO4 and evaporated to give 3.396 g of a yellow * oil. The crude oil was purified by flash chromatography on LPS-1 silica gel (40:1) eluting 134with (75:25) Hexane-acetone. Product fractions were evaporated to give .2.987 g (89.4%) of the title trans-vinyl dimethyl phosphonate as- a golden oil. TLC (1:1) Hex-acetone, Rf = 0.44, UV & PMA.

NMR (CDCl 3 ): δ 2.27 (3H, d, Jh.f=1.6 HZ) 2.33 (3H, s) 2.39 (3H, s) 3.61 (6H,d' JH-P= 11 Hz) 5.51 (IH,dd' JH-H = 18 Hz, JH-p = 20.6 ΞΖ) 6.95- 7.09 (5H, m) 7.48 (IH,dd' jh-h = 17.9 Hz, JH_?=23.7 HZ) ppm.

C NMR (CDC13): δ 14.4, 20.9, 52.0 (Jc-p=5.7 Hz) 114.4, 114.7, 119.2 (Jc_p=185.5 Hz) 124.3, 124.5, 128.4, 128.5 129.0 130.6 130.9 132.6, 132.7, 134.6, 137.1, 141.0, 148.2, 148.2 (Jc_p=5.7 Hz) 160.5 (JC.F = 244.1 Hz) C. [2-[4'-Fluoro-3,3',5-trimethyl[1,1’biphenyl]-2-yl]ethenyl]phosphonic acid, monomethyl ester_ A solution of Part E vinyl dimethyIphosphonate (2.895 g, 8.31 mmole) in dioxane (20 ml) was treated with a 1.0 N LiOH solution (12.5 ml, 12.5 mmole, 1.5 eq) and the resulting mixture stirred at 75°C (oil bath) for 70 minutes under argon. After 15 minutes of heating, the mixture became homogeneous. The mixture was 135cooled to room temperature, acidified to pH 1 with 1.0 N HCl (~15 ml), extracted (2X) with ethyl acetate, the organic phase washed with brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 2.663 g (95.8%) of desired title monomethyl ester as a clear, colorless oil. TLC: (8:1:1) CH^^-C^OH-HOAc, Rf=0.57, UV & PMA.

Mass Spec (M [+H+= 335+ observed). u NMR (CDC1 3 : 10 δ 2.25 (3H, d, JH_p = 1.6 Hz) 2.33 (3H, s) 2.39 (3H, s) 3.53 (3H, d, JH_p = 11 Hz) 5.61 (IH, dd, JH_H = 18 Hz, JH_p=20.6 Hz) 15 6.90- 7.12 (5H, m) 7.38 (IH, dd, Jh.h=18 Hz, Jn_?= 24 Hz) ppm.

D. 4-[[2-[4'-Fluoro-3,3',5-trimethyl[1,1’biphenyl ] -2-yl ] ethenyl ] methoxyphosphinyl ] 3-oxobutanoic acid, methyl ester_ Distilled methyl acetoacetate (420 μΐ, 3.9 mmole, 1.3 eq) was added dropwise over 15 minutes to a stirred· suspension of 60% NaH dispersion in mineral oil (168 mg, 4.2 mmole, 1.4 eq) in dry THF (10 ml) at 0°C (ice bath) under argon. The resulting clear solution was stirred 15 minutes at 0°C, then treated with 1.6 M n-butyllithium solution in hexanes (2.25 m, 3.6 mmole, 1.2 eq) over 10 minutes. The yellow dianion solution was stirred for 15 minutes at 0°C, then cooled to -78°C in preparation for treatment with phosphonochloridate. -136Phosphonochloridate was prepared from title Part C mono methyl ester according to the following method. A solution of the Part C phosphonic mono methyl ester (960 mg, 2.87 mmole) in dry CH2C12 (8 ml) was treated with distilled trimethylsilyldiethylamine (750 μΐ, 5.98 mmole, 2 eq) and the clear mixture stirred under argon at room temperature for 1 hour. The mixture was evaporated in vacuo, azeotroped with benzene (2 x 15 ml) and the viscous oil left on the vacuum pump for 15 minutes. The oil was taken up in dry CH2C12 (8 ml) and dry DMF (1 drop), cooled to 0°C (ice bath) and treated with distilled oxalyl chloride (290 μΐ, 3.3 mmole, 1.1 eq) dropwise over 5 minutes under argon. After 15 minutes at 0°C, the. mixture was stirred at' room temperature for 45 minutes then evaporated in vacuo. The crude oil was azeotroped with dry benzene (2 x 15 ml) to give after evaporation and drying on the vacuum pump for 15 minutes crude phosphonochloridate as a pale yellow oil.

Phosphonochloridate (-^2.9 mmole, 1 eq) in dry THF (8 ml) at -78°C was transferred via cannula dropwise over 30 minutes to a -78°C solution of methyl acetoacetate dianion. After 30 minutes at -78°C the orange brown reaction mixture was quenched by dropwise addition of saturated NH4C1 (8 ml) and allowed to warm to room temperature. The mixture was diluted with ethyl acetate, washed with sat'd NaHCO^ and brine, then dried over anhydrous Na2SO4 and evaporated in vacuo to give 1.481 g of an orange oil. The crude oil was purified by flash chromatography on Merck -137silica gel eluting with (9:1) Hexane-Acetone, followed by (1:1) Hexane-Acetone. Product fractions were combined and evaporated to give 813 mg (62.9%) of desired title vinyl phosphinic diester as a viscous, pale yellow oil. TLC (1:1) Hex-Acetone, Rf=O. 42, UV «St PMA.

NMR (CDC13): δ 2.28 (3H, s) 2.34 (3H, s) 10 2.40 (3H, s) 3.15 (2H, dd, JH_H=4.7 Hz, JH_p=18.2 Hz) 3.54 (3H, d, JH_p = 11.6 Hz) 3.63 (2H, s) 3.72 (3H, s) 15 5.57 (IH, dd, Jb_h=17.9 Hz, JH_p 25.3 Hz) 6.95-7.09 (5H, m) 7.52 (1Ξ, dd, JH_H=17.9 Hz, JH_p=22.7 Hz) ppm. 2013nmr (CDC13): • δ 14.0 (Jc-p=3.9 Hz), 20.6, 45.3 (Jc_p=85.9 Hz), 49.6, 50.9 (Jc_p=5.8 Hz), 5.18, 113.6, 115.0 121.4 (Jc-p=128.9 Hz), 123.6, 124.7, 128, 187.7, 129.5, 130.3, 130.8, 132.1, 132.4, 136.4, 136.8, 138.2, 140.7, 149.2 (Jc_p=4.9 Hz), 160.3 (Jc_p=245.1 Hz), 166.7, 194.4 (Jc_p=4.9 Hz) ppm. 138E. (E)-4-[[2-[4’-Fluoro-3,3,,5-trimethyl[ 1,1' -b ipheny 1 ] - 2 -y 1 ] ethenyl ] methoxyphosphinyl]-3-hydroxybutanoic acid, methyl ester_ A 0°C (ice bath) solution of the Part D, ketone (585 mg, 1.35 mmole) in dry THF (4 ml) was treated with solid NaBH4 (51 mg, 1.35 mmole, 1 molar eq.) followed by dropwise addition of dry CHj OH (1 ml, 3A sieves) and the yellow mixture stirred under argon at 0°C for 30 minutes. The mixture was quenched at 0°C by addition of reagent acetone (6.5 ml) followed by addition of CC-4 silica gel (500 mg). The suspension was warmed to room temperature, filtered through sintered glass, rinsed with ethyl acetate and evaporated in vacuo to give 607 mg of a yellow oil. The crude oil was purified by flash chromatography on Merck silica gel (30:1) eluting with neat ethyl acetate.

Product fractions were evaporated to give 340 mg (57.6%) of desired title alcohol as a pale yellow oil.

TLC (neat EtOAc), Rf=0.19, UV + PMA.

Mass Spec (M+H+=435 observed) NMR (CDC13): 1.90 (2H, m) 2.27 * 2.28 (3H, 2 singlets) 2.34 (3H, s) 2.39 + 2.40 (3H, singlets) 2.56 (2H, d) 3.52 (3H, d, JH_p=ll.l Hz) 3.69 + 3.70 (3H, 2 singlets) 3.79 + 3.90 (IH, 2 doublets) 5.52 + 5.54 (IH, 2dd, JH_H=1S Hz, Hz) =2.48 -1396.95 - 7.02 (5Ξ, m) 7.52 - 7.54 (IH, 2dd, JH_H=18 Hz, JE_?=21.6 5 Hz ) ppm. 13 C NMR (CDC13)(R,S mixture): fi 14.3 (JC_F=3.9 Hz) 20.8, 35.4+ 35.8 (Jc_p=100.6 Hz) 10 42.0 (Jc_p=12.7 Hz) 50.7 (Jc_p=6.8 Hz) 56.5, 63.2 (Jc_p=3.9 Hz) 113.8, 115.3, 122.9 + 123.2 (Jc_p=122.1 Hz) 15 123.8, 128.2, 128.7, 129.0, 130.4, 131.4, 132.3, 132.7, 136.6, 137.0, 138.2, 140.8, 148.2 + 148.8 (Jc_p=4.9 Hz) 160.5 (Jc_p=245.1 Hz) 171.8 ppm.

F. (E)-4-[ [2- [4'-Fluoro-3,3',5-trimethyl[1,1' -biphenyl ] -2-yl ] ethenyl ] hydroxyphosphinyl]-3-hydroxybutanoic acid, dilithium salt_ A solution of the Part E diester (339 mg, 0.781 mmole) in dioxane (8 ml) was treated with excess 1.0 N LiOH (2.3 ml, 2.3 mmole, 3 eq) and the mixture heated at 50°C (oil bath) for 1.5 hours under argon. A white precipitate was evident after 15 minutes. While still warm, the mixture was diluted with H2O until all solids dissolved then filtered. The filtrate was evaporated in vacuo, taken up in a min-imim amount of H2O and chromatographed on HP-20 resin eluting with a neat H2O * neat CH3OH linear gradient. Product fractions were evaporated, the white -140residue taken, up in (50 ml), filtered and lyophilized to give 270 mg (82.7%) of desired) title dilithium salt as a hygroscopic, white lyophilate.

TLC (8:1:1) C^C^-CHgGH-HOAc, Rf=0.33, UV + PMA.

Anal for C21S2205FP*2Li +. 0.63 moles H-,0 (MW 429.57): Calcd: C, 58.71; H, 5.46; F, 4.42; P, 7.21 Found: C, 58.71; H, 5.70; F, 4.18, P, 6.96 NMR (CDC13) δ 1.59 (2H, multiplet) 2.24-2.37 (2H, 3 multiplet, Jg_g=8.5 Hz + 4.4 Hz) 2.28 (3H, doublet, JH_p=1.8 Hz) 2.30 + 2.39 (6H, 2 singlets) 4.14 (IH, multiplet) .78 (IH, Jg_g=17.9 Hz, Jh-j=20.5 Hz) 6.88-7.21 (6H, multiplet) Example 27 4-[ [2-[4*-Fluoro-3,3 ', 5-trimethyl [1,1’-biphenyl ]2-yl ] ethyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt___ A. 4- [[2-[4’-Fluoro-3,3’-trimethyl[1,1’biphenyl ] - 2-yl ] ethyl ] methoxyphosphinyl ] 3-hydroxybutanoic acid, methyl ester An argon purged solution of the Example 6 Part E trans vinyl phosphinate (297 mg) in CH^OH (6 ml) was treated with 10% Pd/c (74 mg, 25% by weight) and the black suspension shaken on a Parr apparatus under 40 psi for 3 hours. Catalyst was removed by filtration through packed Celite and the filtrate evaporated in vacuo to an oil. -141The oil crystallized, from hexanes giving, after filtration and drying in vacuo, 267 mg (89.5%) of title saturated phosphinate as a white crystalline solid. TLC (EtOAc), Rf=0.20, UV + PMA.

NMR (CDC13, 270 MHz), IR (KBr pellet) Mass Spec (M+H+=437+ observed).

^H NMR (CDCI3): 1.55- -1.87 (4H, m) 2.29 + 2.30 + 2.31 (6E, 3 singlets) 2.35 (3H, d, JH_F=: Z.l HZ) 2.52 (2H, m) 2.78 (2H, m) 3.50 + 3.55 (3Ξ, 2 doublets Jg_p=4.3 Hz) 3.71 (3H,s) 3.86 + 3.91 (IH, 2 singlets) 4.25 + 4.39 (1Ξ, 2 broad multiplets) ppm.

B. 4-[[2-[4’-Fluoro-3,3’,5-trimethyl[1,1’biphenyl ] -2-yl ] ethyl ] hydroxyphosphinyl ] 20 3-hydroxybutanoic acid, dilithium salt A solution of the Part A diester (250 mg, 0.573 mmole) in dioxane (6 ml) was treated with excess 1.0 N LiOH (1.72 ml, 3 eq) and the mixture heated at 50°C (oil bath) under argon for 1.5 hours. A white precipitate was evident after 15 minutes. The mixture was diluted with H2O, while still warm until all solids dissolved and then filtered. The filtrate was evaporated in vacuo, the white residue dissolved in a minimum amount of H2O and chromatographed on HP-20 resin eluting . with neat B^O (until neutral), followed by neat CH3OH. Product fractions were evaporated in vacuo to a white solid which was azeotroped (2X) with -142CH^CN and dried in vacuo to give 131 mg (55%) of desired title dilithium salt as a white solid. TLC (8:1:1) CS2Cl2-CH3OH-acetic acid, Rf=0.34, Uv + PMA.

Anal Calcd for C21H240-FPLi2 + 0.95 moles H20 (MW 437.30):’ C, 57.67; H, 5.97; F, 4.34; P, 7.08 Found: C, 57.67; H, 5.90; F, 3.92; P. 7.39 NMR (CD3OD + D20): δ 1.39-1.57 (4H, multiplet) ppm 2.22-2.37 (2H, multiplet) 2.26 + 2.38 (6H, 2 singlets) 2.31 (3E, doublet, JH_F=1.8 Hz) 2.71-2.77 (2H, multiplet) 4.13-4.20 (IH, multiplet) 6.73-7.11 (5H, multiplet, aromatic H’s) Example 28 (E)-4-[[2-[3-(4-Fluorophenyl)-1-(1-methylethyl )lH-indol-2-yl ] ethenyl ] hydroxyphosphinyl ] -3 hydroxybutanoic acid, dilithium salt A. [2-[3-(4-Fluorophenyl)-1-(1methylethyl)-lH-indol-2-yl]-2hydroxyethyl]phosphonic acid, d-ΐ methyl ester A -78°C (acetone/C02) solution of methyl dimethyIphosphonate (1.35 ml, 12.42 mmole, 1.6 eq. ) in dry TEF (20 ml) was treated dropwise over 15 minut-.es with a 1.6 M n-BuLi solution in hexanes (7.3 ml, 11.6 mmole, 1.5 eq.) and the resulting white suspension stirred under argon at -78°C for 1 hour. The Example 7 Part E indole aldehyde (2.183 g, 7.76 mmole) in dry TEF (8 ml) was added dropwise over 10 minutes to the anion at -78eC and -1435 the resulting light orange suspension stirred for 30 minutes at -78°C. The mixture was quenched by dropwise addition of saturated NE4C1 (10 ml), warmed to room temperature, partitioned between H20 and ethyl acetate, the organic phase washed with brine, dried over anhydrous Na2S04 and evaporated to give 3.19 g of a white solid. The crude solid was triturated with warm hexane to give 2.967 g (94.3%) of pure title hydroxy phosphonate as a white solid with m.p.=161-162°C. TLC (1:1) Hex-Acetone, Rf=0.29, UV + PMA.

Anal Calcd for C 2iH2504NPF: C, 62.21; Ξ, 6. 22; N, 3.46; F, 4.69; P. 7.64 Found: C, 62.34; H, 6.32; N, 3.30; F, 4.61; P. 7.32 NMR (CDC13):· δ 1.69 + 1. 74 (6H, 2 doublets ) 2.18 + 2. 56 (2H, 2 multiplets) 3.61 (IH) 3.67 + 3. 71 (6H, 2 doublets, Js_p=ll Hz) 5.32 (1Ξ, m) 5.50 (IH, m) 7.04-7.25 (4H, m) 7.33-7.39 (2H quartet) 7.52 (2Ξ, AB quartet) ppm. C NMR (CDC13): δ 21.1, 21.3, 33.1 (Jc_p=136.3 Hz) 48.3, 52.6 + 52.7 (Jc_p=5.7 Hz) 62.1 (Jc_p=3-8 Hz) 112.5, 114.3, 115.1, 115.4, 119.5, 120, 122, 128.1, 130.6, 131.9, 132.0, 134.8, 134.9, 135.2, 161.8 (Jc_p=246.1 Hz) ppm. -144B. (trans)-[2-[3-(4-Fluorophenyl)-l(T-methyl ethyl )-lH-indol-2-yl] ethenyl]phosphonic acid, dimethyl ester The Part A hydroxy phosphonate (2.60 g, 6.43 mmole) dissolved in warm benzene (20 ml) was treated with pTsOH-H2O (122 mg, 0.1 eq.) and the mixture refluxed through a Soxhlet containing 4A sieves for 1 hour under argon. The yellow solution was cooled, diluted with ethyl acetate, the organ-j e phase washed with saturated NaHC03 (2X) and brine then dried over anhydrous Na2SO4 and evaporated to give 2.47 g of crude olefin as a yellow solid. One recrystallization from ethyl acetate-hexanes gave 2.238 g (89.9%) of pure title trans vinyl phosphonate as pale yellow plates with m.p.=153-155°C.

TLC (1:1) Hex-Acetone, Rf =0.33, UV + PMA Mass Spec (M+H+388+ observed).

Anal Calcd f or c21H23O3PNF: C, 65.11; H, 5.98; N, 3.62; F, 4.90; P. 7.99 Found : C, 65 .27; H, 6.03; N, 3.48; F, 5.11; P. 7.98 n NMR(CDC1_ ): δ 1.67 (6H, doublet) 3.68 (6H, d, JH-p=11.6 Hz) 4.90 (IH, septet) 5.73 (IH, dd, JH_H(trans)=18 Hz, JH_p=18.2 Hz) 7.05- 7.56 (8Ξ, m) 7.64 (IH, dd, JH-H=17.9 Hz, JH_p=23.7 Hz) ppm. -14513 C NMR (CDC13): δ 21.7, 47.8, 52.2 (Jc_p=5.7 Hz) 111.8, 115.4, 115.7, 118.5 C. (trans)-[2-[3-(4-Fluorophenyl)-1(1-methylethyl)-lH-indol-2-yl]10 ethenyl]phosphonic acid, monomethyl ester The Part B vinyl dimethylphosphonate (1.787 g, 4.61 mmole) was dissolved in warm dioxane (12 ml), treated with 1.0 N LiOE (6.9 ml, 6.9 mmole, ‘ 1.5 eq.) and heated at 75°C (oil bath) under argon for 30 minutes. The mixture was cooled, acidified with 1.0 N HCl (8 ml), extracted with ethyl acetate (2X), washed with H2O (2X) and brine, dried over anhydrous Na2SO4 and evaporated to give 1.859 g of a yellow oil. The oil was dissolved in warm hexane, cooled, and crystallized to give 1.657 g (96.1%) of mono acid as a pale yellow solid with m.p.=181-183°C.

Anal Calcd for C2QH21O3PNF: C, 64.02; H, 5.70; N, 3.73; F, 5.06; P, 8.25 Found: C, 64.02; H, 5.87, N, 3.64, F, 5.26, P. 7.90 TLC (20:1:1) CH2Cl2-CH3OH-acetic acid, Rf =0.26, UV + PMA 2H NMR (CDC13): δ 1.66 (6H, doublet) 3.64 (3H, doublet, Jg_p=11.6 Hz) 9 4.89 (IH, septet) -1465.81 (IH, dd, Jh_h=17.9 Hz, JH_p=18.5 Hz) 7.06 -7.64 (9H, multiplet) ppm. 13C NMR (CDC13): δ 21.8, 47.9, 52.1 (Jc_p=5.7 Hz) 112.0, 115.5, 115.8, 116.1/ 119.0 (Jc_p=9.5 Hz) 120.2, 120.4, 123.5, 128.3, 130.4, 130.8, 131.2, 131.8, 131.9, 136.2, 136.8 (Jc_p=7.6 Hz) 161.9 (Jc-p=246 Hz) ppm.

D. 4—[[2-[3-(4-Fluorophenyl)-l-(l-methylethyl )-lH-indol-2-yl] ethenyl] methoxyphosphinyl ]-3-oxobutanoic acid, methyl ester_ Phosphonochloridate was prepared according to the following method. A solution of Part C phosphonic mono methyl ester (1.564 g, 4.19 mmole, 1 eq) in dry CH2C12 (10 ml) was treated with distilled diethylamino trimethylsilane (1.05 ml, 8.38 mmole, 2 eq) and the mixture stirred under argon at room temperature for 1 hour. The mixture was evaporated in vacuo, taken up in benzene (20 ml), evaporated in vacuo and the viscous oil left on the vacuum pump for 15 minutes. A solution of the crude silylated acid in dry CH2C12 (10 ml) and dry DMF (1 drop) was cooled to 0°C, treated dropwise with distilled (COC1)2 (400 ml, 4.61 mmole, 1.1 eq), stirred 15 minutes at 0°C, then at room temperature for 45 minutes under argon. The yellow mixture was evaporated in vacuo, taken up in benzene (20 ml), evaporated in vacuo and left on the vacuum pump 147for 15 minutes to give crude phosphonochloridate as a viscous yellow oil. A solution of the phosphonochloridate in dry THF (8 ml) at -78°C was transferred by cannula dropwise over 20 minutes to a -78°C solution of the methyl acetoacetate dianion prepared as described in Example 26 from methyl acetoacetate(590 μΐ, 5.45 mmole, 1.3 eq), 60% NaH oil dispersion (235 mg, 5.87 mmole, 1.4 eq), 1.6 M n-butyllithium (3.1 ml, 5.03 mmole, 1.2 eq),.THF (10 ml). The orange reaction mixture was stirred minutes at -78°C then quenched by dropwise addition of saturated NH^Cl and allowed to warm to room temperature. The mixture was partitioned between ethyl acetate and H2O, the organic phase washed with saturated NaHCO^ and brine then dried over andhydrous Na2SO4 and evaporated to give 2.080 g of a yellow oil. The crude oil was purified by flash chromatography on Merck silica gel eluting with (7:3) gff^e-EtOAc. Product fractions were combined and evaporated to give 519 mg (26.3%) of desired title trans phosphinate as a light yellow oil.

TLC (1:1) Hex-Acetone, Rf=0.48, UV + PMA..

Mass Spec (M+H+=472+ observed).

NMR (CDC13): 1.66 + 1. 71 (6H, 2 doublets) 1.68 (2H, m) 3.23 (2H doublet) 3.54 (3H, d) 3.72 (3Ξ, s) 4.90 (IH, septet) 5.76 (1H,dd' JH-H= =18 Hz) -1487.10-7.58 (8H, m) 7.66 (IH, dd, J_ =18 Hz) ppm.

JC NMR (CDC13): δ 21.8, 45.7 (Jc-p=87.1 Hz) 47.9, 50.0, 51.5 (Jc_p=5.7 Hz) 52.3, 111.9, 115.5, 118.8 (Jc_p=104.1 Hz) 119.8, 120.2, 120.3, 123.6, 128.2, 130.4, 130.8, 131.8, 131.9, 136.1, 139.2 (Jc.p=5.6 HZ) 161.9 (Jc_f=246 Hz) 167.0, 194.6 (Jc_p=3.8 Hz) ppm.

E. (E)-4-[[2-[3-(4-Fluorophenyl)-1-(1methylethyl)-lH-indol-2-yl]ethenyl]methoxyphosphinyl]-3-hydroxybutanoic acid, methyl ester A -15°C (salt/ice bath) solution of the Part D ketone (519 mg, 1.1 mmole) in dry absolute EtOH (3A sieves, 8 ml) was treated with solid NaBH4 (42 mg, 1.1 mmole) and the yellow mixture stirred under argon at -15°C for 20 minutes. The mixture was quenched by addition of acetone (0.5 ml) followed by CC-4 silica gel (500 mg). The mixture was warmed to room temperature, filtered, rinsed with ethyl acetate and evaporated in vacuo to give 512 mg of a yellow foam. The crude foam was purified by flash chromatography on Merck silica gel eluting with (4:1) ethyl acetate-acetone followed by neat acetone. Product fractions were evaporated to give 317 mg (60.9%) of desired title alcohol as a yellow oil.

TLC (4:1) E tOAc-Ace tone, Rf=0.21, OV + PMA. -149Mass Spec (M+H+=4.74+ observed) NMR (CDC13) : δ 1.68 (6Ξ, doublet) 1.97 (2H, m) 5 2.58 (2Ξ, d) 3.61 (3E, d, JH_p=H Hz) 3.68 (3Ξ, s) 3.95 + 4. 04 (IH, 2 doublets) 4.40 (IH, bm) 10 4.95 (IH, septet) 5.78 (IH, dd, JH_a=17.4 Hz, Jg_p=23.2 Hz) 7.05-7.77 (9H, m) ppm. 13 C NMR (CDC13): δ 21.7, 34.9 + 36.3 (Jc_p=20.8 Hz) 15 42.0 (Jc_p=13.2 HZ) 47.8, 50.8 (Jc_p=5.6 Hz) 51.6, 63.1 (Jc-p=15.1 Hz) 111.8, 115.4, 115.7, 118.6, 119.9 + 121.8 (Jc_p=18.9 HZ) 120.1, 123.4, 128.2, 130.6, 130.7, 131.1, 131.7, 131.9, 135.8, 138.0 + 138.5 (Jc_p=5.7 Hz) 161.8 (Jc_p=246.1 Hz) 171.7, 171.8 ppm. .

F. (E)-4-[[2-[3-(4-Fluorophenyl)-l-(lmethylethyl)-lH-indol-2-yl]ethenyl]hydroxyphosphinyl]-3-hydroxybutanoic acid, dilithium salt_ A stirred solution of the Part E hydroxy diester (264 mg, 0.558 mmole) in dioxane (6 ml) was treated with 1.0 N LiOH (1.95 ml, 3.5 eq) and heated at 70°C (oil bath) for 20 minutes under argon. The mixture was allowed to cool, diluted -1505 with H2O, filtered, evaporated in vacuo, taken up in a small amount of HjO (1-2 mis) and chromatographed on ΞΡ-20 eluting with H2O (until neutral, 3-4 column volumes) followed by (75:25) CH3OH-H2O. Product fractions were evaporated, taken up in H2O (50 ml), filtered and lyophilized to give 217 mg (85.1%) of desired title dilithium salt as a white lyophilate. · TLC (8:1:1) CH^^-C^OH-acetic acid, Rf0.08, UV + PMA Anal Calcd for C^E^O^NFF-2 Li + 1.62 moles H2O (MW 486.46): C, 56.78; H, 5.44; N, 2.88; F, 3.91; P, 6.37 Found: C, 56 .76; H, 5.64; N, 2.58; F, 3.60; P, 6.77XH NMR (400 MHz, CDC13): δ 1.67 (6H, doublet) 1.73 (2H, multiplet) 2.38 (2H, doublet of AB quartet, =15 Hz, JAX=8 •W4·8 821 4.24 (IH, multiplet) 5.06 (IH, septet) 6.09 (IH, ^=17.6 HZ, ^=19.4 Hz) 7.02- •7.61 (9H, multiplet) Example 29 (S) -4- [ [2-[1-(4-Fluorophenyl )-3-( 1-methy lethyl) lH-indol-2-yl ] ethyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt_ A. 4-Methyl-2-oxopentanoic acid, ethyl ester_ 4-Methyl-2-oxopentanoic acid, sodium salt (25 g) was dissolved in a minimum amount of H2O, acidified to pH 1 with concentrated HCl and then -151extracted several times with CH2C12· The aqueous phase was saturated with NaCl and back extracted (2X) with CH2C12. The combined organic phases were washed with brine, dried over anhydrous Na2SO4 and evaporated to give 17.7 g of the free acid as a viscous oil.

A mixture of the acid (17.7 g, 136 mmole) in dry benzene (200 ml) was treated with diazabicycloundecane (DBU) (20.4 ml, 136.2 mmole, 1 eq.) giving an exothermic reaction and a gel-like crystalline salt formed. The mixture was treated with ethyl iodide (10.9 ml, 1 eq.) and mechanically stirred under argon for 3 hours. Precipitated salts were removed by filtration, the filtrate washed once with a small amount of H20 (50 ml) and brine then dried over anhydrous Na2SO4· Benzene was removed by distillation at atmospheric pressure and the yellow liquid remaining was vacuum distilled to give 6.46 g (35.1%) of desired title ester as a clear, pale yellow liquid with bp = 65-66°C (5 mmHg). TLC (9:1) Hexane-acetone, R£=0.55, PMA (pale blue) Mass Spec (M+H+=159+ observed). Β. 4-Methyl-2-(2-phenylhydrazono )pentanoic acid, ethyl ester A solution of the Part A ethyl ester (5 g, 31.6 mmole) in dry CHjC^ (30 ml) was treated with phenylhydrazine (3.3 ml, 33.2 mmole, 1.05 eq) dropwise over 5 minutes and the resulting yellow mixture stirred under argon at room temperature over 4A sieves for 3 hours. The mixture was dried over anhydrous Na2SO4, filtered and evaporated -152in vacuo to give 8.105 g of an orange oil. The oil was purified by flash chromatography on LPS-1 silica gel eluting with Hexane-ethyl acetate. Product fractions were evaporated to give 6.8 g (86.7%) of pure title hydrazone and 848 mg (10.8%) of the geometrical isomer of the title hydrazone. Total yield=97.5% TLC (9:1) Hexane-Acetone, Rf geometrical isomers=0.42 + 0.64, UV + PMA Mass Spec (M+H+=249+ observed).

C. 3-(1-Methylethyl)-lH-indole-2carboxylic acid, ethyl ester Gaseous HCl was bubbled (gas dispersion tube) into an absolute ethanolic (50 ml, over 3 A sieves) solution of the Part B hydrazone (6.8 g, 27.4 mmole) for 30 minutes at room temperature.

The exothermic reaction was characterized by color changes from yellow to red to deep green followed by precipitation of NH4Cl. The suspension was stirred an additional 20 minutes under Drierite, then dumped into ice cold H20 (50 ml). Ethanol was removed in vacuo and the residue partitioned between ethyl acetate and H^O. The aqueous layer was extracted with ethyl acetate (2X), the combined organic phases washed with H20 and brine, then dried over anhydrous MgS04 and evaporated to give 4.969 g of a green solid. The crude solid was dissolved in hot hexane, treated with Darco, filtered through packed Celite, concentrated to a 30-50 ml volume and the yellow solution allowed to crystallize. Precipitated crystals were collected by filtration, rinsed with -153 cold hexane and dried to give 4.34 g (68.5%) of pure title indole as white needles with mp80-81°C and with consistent ^H NMR (CDCl^, 270 MHz).

TLC (9:1) Hexane-Acetone, R^ = 0.42, UV + PMA. Note: Rf of hydrazone and indole are identical but indole has bright purple fluorescence. (M+H = 232+ observed).

Anal Calcd for C^H^NC^: C, N, Found: C, 72.67; H, 7.57; N, 72.70; H, 7.41, 6.06 6.00 D. 1-(4-Fluorophenyl-3-(1-methylethyl)lH-indole-2-carboxylic acid, ethyl ester . A solution of the Part C indole (3.937 g, mmole) and l-bromo-4-fluorobenzene 9.34 ml, 85 mmole, 5 eg) in dry DMF (15 ml) was treated with cuprous oxide (245 mg, 1.7 mmole, 0.1 eg) and refluxed under argon for 17 hours. Additional bromide (9.34 ml, 5 eg) and Cu2O (245 mg, 0.1 eg) were added, refluxing continued for 6 hours, more Cu2O added (730 mg, 5.1 mmole) and refluxing continued for 60 more hours. DMF and excess bromide were distilled off in vacuo and the orange residual oil taken up in ethyl acetate, filtered through packed Celite, washed with saturated NaHCO3 and brine then dried over anhydrous Na2SO4 and evaporated to give 5.385 g (97.2%) of desired crude title indole as an orange oil.

TLC (9:1) Hexane-Acetone, R^=0.29, UV + PMA. -154 Ε. 1-(4-Fluorophenyl)-3-(1-methylethyl)IH-indo1e-2-methano1 To cold (0°C, ice bath) dry ether (24 ml) under argon was added solid LiALH4 (907 mg, 23.9 mmole, 1.5 molar equivalent) followed by dropwise addition of the Part D indole ester (5.185 g, 15.9 mmole) in dry Et2O (10 ml) over 10 minutes. The mixture was stirred for 1 hour at 0°C, then quenched at 0°C by sequential dropwise addition of H20 (910 μΐ), 15% NaOH (910 μΐ) and H20 (2.73 ml).

The suspension was filtered through anhydrous MgSO4 over packed Celite and the filtrate evaporated to a clear, colorless oil. The oil gradually crystallized from hexane to give in 2 .15 crops (3.771 g + 0.333 g) 4.10 g (90.9%) of pure title indole alcohol as white, granular crystals with mp = 81-82°C.

Mass Spec (M+H+=284 observed).

Anal Calcd for C18H18NOF: C, 76.30; H, 6.40; N, 4.94; F, 6.71 Found: C, 76.59; H, 6.31; N, 4.93; F, 6.49 F. 1-(4-Fluorophenyl)-3-(1-methylethyl)lH-indole-2-carboxaldehyde_ A solution of Dess-Martin periodinane (6.46 g, 15.24 mmole) in dry CH2C12 (30 ml) was treated with dry t-butanol (4A sieves, 1.44 ml, 15.24 mmole, 1 eq.) and the mixture stirred under argon for 15 minutes at room temperature. A solution of the Part E indole alcohol (3.599 g, 12.7 mmole) in dry CH,C1, (13 ml) was added dropwise over 10 M it minutes and the pale yellow mixture stirred under argon at room temperature for 30 minutes. The -1555 reaction mixture was added to a solution of sodium thiosulfate (14.06 g, 89 mmole, 7 eq) in freshly prepared IN NaHCO3 (40 ml) and stirred for 10 minutes. The aqueous phase was drawn off, the organic phase washed with 1.0 N NaHC03 (2X), H2O and brine, then dried over anhydrous Na2SO4 and evaporated to give 3.877 g of a yellow oil. The crude oil was purified by flash chromatography on LPS-1 silica gel eluting with (40:1) Hexane-ether. Product fractions were evaporated to give 3.118 g (87.3%, crude yield) of crude product. One recrystallization from hot hexane gave 2.643 g (74%) of pure title aldehyde as white fluffy needles with mp = 114-116°C.

Mass Spec (M+H+=282+ observed). TLC (7:3) Hex-Et2O, Rf=0.51, UV + PMA Anal Calcd for C18N16NOF: C, 76.85; H, 5.73; N, 4.98; F, 6.75 Found: C, 76.87; Ξ, 5.63; N, 4.89; F, 6.88 G. 2-(2,2-Dibromoethenyl)-1-(4-fluorophenyl)-3-(1-methylethyl)-IE-indole A -15°C (salt/ice bath) solution of the Part F aldehyde (1.615 g, 5.74 mmole) and triphenylphosphine (4.52 g, 17.22 mmole, 3 eq) in dry CH2C12 (25 ml) was treated dropwise over 10 minutes with a CBr4 (2.86 g, 8.61 mmole, 1.5 eq) solution in dry CH2Cl2 (10 ml) and the resulting dark orange red solution stirred under argon at -15°C for 15 minutes. The mixture was quenched at -15eC by the addition of saturated NaHCO3, diluted with CH-C1-, the organic phase washed with MM saturated NaHCO3 and brine then dried over * -156anhydrous Na2S04 and evaporated to give 8.9 g of a red solid. The crude solid was purified by flash chromatography on LPS-1 silica gel eluting with (100:1) Hexane-ether. Product fractions were evaporated to give 2.017 g (80.6%) of pure title vinyl dibromide as pale yellow crystals with mp=123°-124°C .

TLC (9:1) Hexane-ether, Rf = 0..67, UV & PMA.

Mass Spec (M&H+=438+ observed).

Anal Calcd for CigH16NFBr2: C, 52.20; H, 3.69; N, 3.20; F, 4.35; Br, 36.56 Found: C, 52.25; H, 3.69; N, 3.18; F, 4.24; Br, 36.59 H. 2-Ethyny1-1-(4-fluorophenyl)-3-(1methylethyl)-lH-indole_ A -78 ®C (C02/acetone) solution of dry THF (10 ml) was treated with a 1.6 M n-butyl lithium solution in hexanes (5.5 ml, 8.8 mmole, 2.2 eg) and a solution of Part G vinyl dibromide (1.749 g, .4 mmole) in dry THF (10 ml) was added dropwise over 15 minutes under argon.' The yellow mixture was stirred 20 minutes at -78°C, then guenched by the addition of sat'd. NH4C1 (10 ml). After warming to room temperature, the mixture was diluted with ethyl acetate, the organic phase washed with sat’d. NH4C1 and brine, then dried over anhydrous Na2SO4 and evaporated to give 1.216 g of a dark green-brown oil. The crude oil was purified by flash chromatography on Merck silica gel eluting with (300:1) Hexane-ether. Product fractions were evaporated to give 1.084 g (97.5%) 157 of title indole acetylene as a fluorescent green oil. NMR (CDC13, 270, ΜΞΖ) indicated an (18:1) mixture of desired acetylene to undesired terminal olefin. TLC (50:1) Hex-Et20, Rf=0.55, UV & PMA.

J. (S)-4-[ [2-[1-(4-Fluorophenyl)-1(l-methylethyl)-IH-indo1-2-yl]ethyny1]methoxyphosphinyl]-310 [[(1,1-dimethylethyl)diphenylsilyl]oxylbutanoic acid, methyl ester Phosphonochloridate was prepared from the Example 25 phosphonic mono methyl ester, di cylohexyl amine salt by the following procedure.

The free acid was regenerated from the di cyclohexyl amine salt (4.32 g, 6.83 mmole, 1.75 eg) by partitioning between 1.0 N HCl and ethyl acetate, washing the organic phase with 1.DN HC1 (2X) and brine then drying over anydrous Na2S04 and evaporating in vacuo to give the free acid (6.8 mmole) as a clear, viscous oil. The phosphonic acid, mono methyl ester (6.8 mmole) in dry CH2C12 (10 ml) was treated with distilled trimethylsilyl diethylamine (1.72 ml, 13.7 mmole, 2 eq) and the clear solution stirred under argon at room temp, for 1 hour. The mixture was evaporated in vacuo, chased with dry benzene (2 X 20 ml) and left on the vacuum pump for 15 minutes. The crude silylated acid in dry CH2C12 (10 ml) and dry DMF (1 drop) was cooled to 0°C (ice bath) and treated dropwise over 5 minutes with distilled (COC1)2 (655 μΐ, 7.5 mmole, 1.1 eq). The yellow mixture was stirred at 0°C for 15 minutes and 45 minutes at 158 room temp, under argon. The mixture was evaporated in vacuo, chased with benzene (2 x 20 ml) and left on the vacuum pump for 15 minutes giving crude phosphonochloridate as a yellow, viscous oil.

A -78°C solution (C02/acetone) of the Part H indole acetylene (1.084 g, 3.90 mmole, 1 eq) in dry THF (10 ml.) was treated dropwise over 10 minutes with a 1.6 M n-butyllithium in hexanes solution (2.44 ml, 3.9 mmole, 1 eq) and the purple suspension stirred, under argon at -78°C for 30 minutes. The anion was added dropwise via cannula over 30 minutes at -78eC to a -78°C solution of the phosphonochloridate in dry THF (10 ml). The dark brown mixture was stirred at -78°C for 30 minutes then quenched by dropwise addition of sat’d NH4C1 (10 ml). The mixture was warmed to room temperature, partitioned between ethyl acetate, and sat'd NH4C1, washed with brine, dried over anhydrous Na2SO4 and evaporated to give 1.968 g (71.1%) of title acetylenic phosphinate as a light yellow oil.

TLC (7:3) Hexane-Acetone, Rf=0.25, UV & PMA.

Mass Spec. (M+H+=710+ observed).

K. (S)-3-[[(1,1-Dimethylethyl)diphenylsilyl ]oxy]-4-[[2-[1-(4—fluorophenyl)-3(l-methylethyl) - IH- indo 1 -2-yl ] ethyl ] methoxypho sphinyl] butanoic acid, methyl ester _ An argon purged solution of Part J acetylene (950 mg) in CH^OH (10 ml) was treated with 10% Pt/C (238 mg, 25% by weight) and the 159 black suspension stirred under an atmosphere (1 atm) overnight. Catalyst was removed by filtration through a Millipore polycarbonate filter (0.4 pm) and prefilter and the filtrate evaporated in vacuo to a yellow oil. The crude oil was purified by flash chromatography on Merck silica gel eluting with (8:2 ) Hexane-ethyl acetate. Product fractions were evaporated to give 915 mg (86.7%) of pure title saturated phosphinate as a white foam.

TLC (4:1) EtOAc-Hexane, Rf = 0.39, UV + PMA. Mass Spec (M+H+=714+ observed).

L. (S)-4-[[2-[1-(4-Fluorophenyl)-3-(115 me thylethyl) - IH- indo 1 - 2 -y 1 ] ethyl ] methoxyphosphinyl ] -3 -hydroxybutanoic acid, methyl ester_._' A solution of the Part K silyl ether (915 mg, 1.22 mmole) in THF (10 ml) was treated successively with glacial acetic acid (280 μΐ, 4.88 mmole, 4 .eq) and a 1.1 M n-C^H^NF solution in THF (3.3 ml, 3.66 mmole, 3 eq) and the mixture stirred under argon at room temperature overnight. Ice cold H2O (8 ml) was added, the mixture extracted with ethyl acetate, the organic phase washed with 5% KHSO4‘(2X), saturated NaHCO3 and brine then dried over anhydrous Na2SO4 and evaporated in vacuo to give 955 mg of a yellow oil. The crude oil was purified by flash chromatography on Merck silica gel eluting with (1:1) Hexane-Acetone. Product fractions were evaporated to give 521 mg (85.5%) of desired title alcohol as a pale yellow oil. -160 TLC (3:2) Acetone-Hexane, Rf=0.21, UV + PMA.

Mass Spec (M+H+=476+ observed).

M. (S)-4-[[2-[1-(4-Fluorophenyl)-3-(15 methylethyl)-lH-indol-2-yl]ethyl]hydroxyphosphinyl2-3-hydroxybutanoic acid, dilithium salt A solution of Part L diester (505 mg, 1.06 mmole) in dioxane (10 ml) was treated with excess 1.0 N LiOH (3.7 ml, 3.7 mmole, 3.5 eq) and the mixture heated at 65°C (oil bath) under argon for 1.5 hours. The mixture was diluted with H20, filtered, and evaporated in vacuo to a light yellow solid. The crude solid was suspended in a small amount of H20 and chromatographed on HP-20 resin (15 cm bed, 25 mm dia. column) eluting with H2O until neutral followed by CHgOH. Product fractions were combined, evaporated, taken up in H20 (50 ml) and lyophilized to give 484 mg (95.4%) of desired title dilithium salt as a white lyophilate.

TLC (8:1:1) CH2Cl2-CH3OH-acetic acid, Rf=0.39, UV + PMA.' Anal Calcd for C23H25NO5FP· 2Li + 1.03 moles •h2° 25 (MW=477.91): C, 57.80; H. 5.72; N, 2. 93; F, 3.97; P, 6.48 Found: C, 57.80; H, 6.01, N. 3.01; F, 3.93, P, 6.41 -161 Example 30 (S )-4- [ [2-[1-(4-Fluorophenyl)-3-(1-methylethyl)lH-indol-2-yl ] ethynyl ] hydroxyphosphinyl ] - 3 hydroxybutanoic acid, dilithium salt A. (S)-4-[[2-[l-(4-Fluorophenyl)-3-(lme thy lethyl) -lH-indol-2-yl ] ethynyl ] methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester A solution of the Example 30 Part J silyl 10 ether (987 mg, 1.39 mmole) in dry THF (12 ml) was treated successively with glacial acetic acid (320 μΐ, 5.6 mmol, 4 eq) followed by a 1.1 M n-C4HgNF solution in THF (3.8 ml, 4.17 mmole, 3 eq) and the mixture stirred overnight under argon at room temperature. The mixture was diluted with ice cold H^O (10 ml) and extracted with ethyl acetate. The organic phase was washed with 5% KHS04 (3X), saturated NaHCO3 and brine then dried over anhydrous Na2SO4 and evaporated to give 1.0 g of a yellow oil. TLC indicated formation of some mono acid which was converted back to the methyl ester by treatment with ethereal solution of CH2N2. Excess CH2N2 was quenched with glacial acetic acid and the mixture evaporated in vacuo to give 1.012 g of a brown oil. The crude oil was purified by flash chromatography on Merck silica gel eluting with (8:2) Hexane-Acetone (600 ml) followed by (1:1) Hexane-Acetone. Product fractions were evaporated to give 516 mg (78.7 %) of free title alcohol as a light brown oil. TLC (9:1) CH2C12-CH3OH, Rf=0.41, UV + PMA. Mass Spec (M+H+=472+ observed). i -162B. (S)-4-[[2-[l-(4-Fluorophenyl)-3-(lmethy1ethy1) - IH- indo 1 - 2 -y 1 ] ethynyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt A solution of the Part A diester (516 mg, 1.09 mmole) in dioxane (10 ml) was treated with a 1.0 N LiOH solution (3.8 ml, 3.8 mmole, 3.5 eq) and the clear mixture heated and stirred at 60°C (oil bath) for 1.5 hours under argon. The mixture was diluted with H2O, filtered, evaporated in vacuo, the residual oil taken up in a minimum amount of' H2O and chromatographed on ΞΡ-20 resin (15 cm bed, 25 mm column diameter) eluting with neat H2O (until neutral) followed by (1:1) H2O-CH3OH. Product fractions were evaporated in vacuo, taken up in H20 (50 ml), filtered and lyophilized to give 447 mg (82.3%) of desired title di-lithium salt as a white lyophilate.

TLC (8:1:1) CH2C12~CH3 OH-acetic acid, Rf=0.39, UV + PMA.

Anal Calcd for C^H^OgPNF· 2Li+2.27 moles H2O (MW 496.19): C, 55.67; H, 5.19; N, 2.82; F, 3.83; P. 6.24 Found: C, 55.69; H, 5.37; Ν,’2.82;, F, 3.85; P, 6.19 Example 31 (S )-4- [ [ [2,4-Dimethyl-6- [ (4-fluorophenyl)methoxy]phenyl ] ethynyl ] hydroxyphosphinyl ] -3 -hydroxybutanoic acid, dilithium salt_____·_ A. 1-(Methoxvmethoxy)-3,5-dimethvlbenzene A THF solution (12 ml) of 3,5-dimethy lphenol (10.42 g, 85.3 mmol) was added dropwise over 10 -163• minutes to a suspension of NaH (85.3 mmol) (prewashed with pentane) in THF (150 ml) under an argon atmosphere and cooled to 0°C. After completion of the addition of the phenol, the reaction was stirred at 0°C for 10 minutes warmed to room temperature and stirred for 20 minutes. To the alkoxide solution was added 42 ml of dry DMF followed by the slow addition of a 10 ml THF solution of bromomethyl methyl ether (11.19 g, 89.6 ' mmol). A white precipitate formed.. After stirring for 2.5 hours at room temperature, the reaction was quenched by the slow addition of 25 ml of IN NaOH. The THF was removed from the reaction mixture by rotary evaporation and the resulting solution was diluted with saturated NaCl solution and then extracted 3 times with ether. The combined ether extracts were dried over Na2SO4 and filtered. Solvent removal gave an orange oil. Purification by flash chromatography eluting with 5% ether/hexanes gave the title methoxymethyl (MOM) ether (12.0 g, 85% yield) as a clear oil.

TLC Rf=0.45 (15% Et2O/Hexane, silica gel) Mass Spec m/e 166 (M+), 165 (M+-H)~ B. 2-(Me thoxyme thoxy )-4,6-dimethylbenzaldehyde_ Tetramethylethylenediamine (7.70 g, 79.45 mmol) was added slowly to a solution of n-butyl lithium (26.5 ml, of a 2.5 M solution of hexane) in cyclohexane (30 ml) under argon atmosphere. The solution was cooled to 0eC and the Part A MOM-ether (11.00 g, 66.21 mmol) was added dropwise over 20 minutes. After the 164addition was complete, the reaction was stirred at 0°C for 30 minutes, warmed to room temperature and stirred for 10 minutes. The anion was then added via addition funnel to a 100 ml dry cyclohexane solution of DMF (5.81 g, 79.45 mmol) under argon atmosphere and at room temperature. The reaction was stirred at room temperature for 2 hours then quenched with methanol. The reaction solvent was removed on the rotavap, and the resulting orange oil was dissolved in a 1:1 ether/water mixture.

The water layer was extracted 3 times with ether and the combined ether extracts were dried over MgS04· Filtration and solvent removal gave an orange oil. Purification of the oil by flash chromatography eluting with 20% ether/Hexane gave the desired title aldehyde (7.7 g, 60%) as a clear oil.

TLC R£=0.14 (15% Et^O/Hexane, silica gel).

Mass Spec, m/e 195 (M+H)*, 179 (M-CH^*, 163 (M-OCH3)*, 149 (M-O2CH5)* C. 2 -Hydroxy-4,6-dimethy lb enzaldehvde A IM HCl solution (35.5 ml) was added to a dioxane (130 ml) solution of the Part B MOM-ether (6.89 g, 35.5 mmol) at room temperature. The reaction was warmed to a gentle reflux and stirred for 30 minutes. The reaction was cooled to room tempera tun* , apd the dioxane was removed via rotary evaporation. The resulting aqueous. solution was diluted with H20 and extracted with ether. The aqueous layer was then saturated with NaCl and reextracted 2 times with ether. The ether extracts were combined and then dried over -165 -MgSO4· Filtration and solvent removal gave a greenish solid which was purified by recrystallization from hexane (4.01 g, 75%).

TLC R£=0.48 (25% Et2O/Hexane, silica gel) mp 46-48°C. Mass Spec, m/e 151 (M+H) + , 135 (M-C^)* D. 2-[(4-Fluorophenyl)methoxy]-4,6dimethylbenzaldehyde A solution of the Part C phenol (4.0 g, 26.7 mmol) and dry DMF (30 ml) was stirred under argon atmosphere. At room temperature, solid K2CO3 (4.43 g, 32 mmol) was added to the phenol solution and then warmed to 60°C for 35 minutes.

The resulting orange solution was cooled to room temperature and the p-fluorobenzyl bromide (5.55 g, 29.3 mmol) was added. The reaction was warmed to 60°C and stirred for 2 hours. The reaction mixture was poured into 50 ml of ice water and this mixture was extracted several times with ether. The combined ether.extracts were dried over MgS04 and filtered to give a yellow solid after solvent removal. Purification by flash chromatography eluting with 15% ether/Hexane gave the title benzyl ether (4.48 g, 60%) as a white solid.

TLC R£=0.34 (25% Et2O/Hexane, silica gel) Mass Spec, m/e 259 (M+H)+, 231 (M-CHO)+, 109 (M-C^F)* E. l-(2,2-Dibromoethenyl)-2,4-dimethyl-6(pheny lme thoxy) benz ene_ A 170 ml dry CH2C12 solution of the Part D aldehyde (4.42 g, 17.13 mmol) under argon 166 atmosphere was cooled in an ice-salt bath. To the cooled solution was added triphenyl phosphine (14.4 g, 55.0 mmol) and the mixture was stirred f until all of the solid dissolved. A 50 ml solution of CBr^ (8.52 g, 25.7 mmol) was added via an addition funnel over a 12 minute period.

After the addition was complete, the orange reaction solution was stirred at 0°C for 1 hour 15 minutes. The reaction was quenched with 60 ml of saturated aqueous NaHCOg solution and stirred vigorously. The aqueous layer was removed and extracted 2 times with CZ^l^ ’ CH2C12 solutions were washed once with saturated aqueous NaHCOg solution, dried over MgS04 and filtered to give the title dibromide in the form of a tan solid (13 g). The title dibromide was purified by flash chromatography eluting with 2% ether/hexane providing 5.49 g, 77% yield of the title dibromide.

TLC R£=0.28 (2% Et2O/Hexane, silica gel).

Mass Spec, m/e 413 (M+H)+, 333, 335 (M-Br)+, 317 (M-C6H4F), 109 (M-C1QHgOBr2) + .

F. 1-Ethynyl-2-[ (4-fluorophenyl )methoxy] 4,6-dimethylbenzene A 70 ml thf solution of the Part E dibromide (5.48 g, 13.3 mmol) under argon atmosphere was cooled to -78°C. n-Butyllithium (10.6 ml of a 2.5 M solution in hexane, 26.5 mmol) was added to the dibromide solution over 10 minutes. The reaction was stirred at -78°C for 1 hour and then quenched at -78°C with saturated » aqueous NH4C1 solution. After the reaction was 167warmed to room temperature, it was diluted with 60 ml of H20, and the aqueous layer was extracted 2 times with ether. All of the organic layers were combined and dried over MgSO^. Filtration and solvent removal gave 3.8 g of title benzyloxyacetylene in the form of a yellow solid. The title benzyloxyacetylene was purified by flash chromatography eluting with 3% ether/hexane.

Title acetylene was obtained in 85% yield (2.76 g) as a white solid.

TLC R£=0.17 (2% Et2O/Hexane, silica gel) Hass Spec, m/e 255 (M+H) + , 159 (M-C6H4F) + , 109 (-C10H90)+ G. (S )-4-[[ [2,4-Dimethyl-6-[ (4-fluorophenyl ) methoxy ] phenyl ] ethynyl ] hydroxyphosphinyl ] -3- (t-butyldiphenylsilyloxy) butanoic acid, dilithium salt A 40 ml THF solution of the Part F acetylene (.2.76 g, 11 mmol) under argon atmosphere was cooled to -78°C. At -78°C, n-butyllithium (4.4 ml of a 2.5 M solution in hexane) was added over 8 minutes. The reaction was stirred at -78°C for 40 minutes.

The Example 25 phosphonylchioridate (17.4 mmol), in 60 ml of THF and under argon atmosphere was cooled to -78°C. The above generated acetylenic anion was then added over 8 minutes. After stirring for 1 hour at -78°C, the reaction was quenched at -78°C with saturated aqueous NH4C1 solution and allowed to warm to room temperature. The aqueous layer was diluted with H20 and extracted 2 times with ether. The THF was removed 168 from the THF reaction layer, and the resulting orange oil was taken up in ether. All of the ether solutions were combined and washed once with saturated agueous NaHCO^ solution and once with saturated NaCl solution. The organic layer was dried over MgSO4 and filtered leaving 9.4 g of title acetylenic phosphinic acid in the form of an orange gum after solvent removal. The title acetylenic phosphinic acid was purified by flash chromatography by eluting with a 5/1/4 hexane/toluene/ethyl acetate mixture. Title acetylenic phosphinic acid (4.23 g) was obtained in 56% yield as a clear gum.

TLC R£=0.28 (5/1/4 Hexane/toluene/ethyl acetate silia gel) Mass Spec, m/e '609 (M+H-CgH5) + , 255 (C^H^SiO) + H. (S)-4-[[[2,4-Dimethyl-6-[(4-fluorophenyl ) methoxy ] phenyl ] ethynyl ] methoxypho sphinyl]-3-hydroxybutanoic acid, methyl ester_ Fart G acetylenic phosphinate (0.455 g, 0.66 mmol) was stirred in 10 ml of THF under argon atmosphere. Acetic acid (0.16 g, 2.66 mmol) was added at room temperature followed by the dropwise addition over 5 minutes of n-C4HgNF (1.8 ml of a 1.1 M THF solution, 2.0 mmol). After stirring for 24 hours at room temperature, the reaction was quenched by the addition of 30 ml of ice-water.

The agueous layer was removed and extracted 2 •times with ethyl acetate. The THF was removed from the reaction organic layer, and the resulting oil was dissolved in ethyl acetate and combined 169with the extracts of the aqueous layer. This ethyl acetate solution was washed 2 times with saturated aqueous NaHCO3 solution and once with saturated NaCl solution and then dried over Na2SO4. Filtration and solvent removal gave 0.40 g of title hydroxy acetylenic phosphinate in the form of an oil. The title hydroxy acetylenic phosphinate was purified by flash chromatography eluting with 100% ethyl acetate. Title hydroxy acetylenic phosphinate was obtained in 79% yield. TLC R£=0.56 (7:3 acetone/Hexane, silica gel).

Mass Spec, m/e 449 (M+H)+, 431 (M-OH)+, 417 (M-OC^)* J. (S)-4-[[ [2,4-Diaethyl-6-[(4-fluoro-. phenyl) methoxy ] phenyl ] ethynyl ] hydroxyphosphinyl ]-3-hydroxybutanoic acid, dilithium salt To a 6.0 ml dioxane solution of Part H .20 acetylenic phosphinate (0.191 g, 0.43 mmol) at room temperature was added 1.4 ml of IN LiOE solution. The reaction was warmed to 55°C and stirred for 2 hours. The reaction was cooled to room temperature and evaporated to dryness to obtain the title compound. The title compound was purified on a 130 mm x 30 mm diameter column of HP-20 eluting first with 100 ml of H20 then with a 1:1 MeOH/H2O mixture. Title compound was obtained in 91% yield (0.170 g) as a white lyophilate.

TLC Rf=0.37 (7:2:1 nPr0H/NH40H/H20, silica gel). Mass Spec (FAB) m/e 421 (M+H)+, 427 (M+Li)+, 433 (M+2Li)+ -170Anal Calcd for C21H20°6FRL22*2*4 H20: C, 55.09; H, 4.98; F, 4.15; P, 6.78 Found: C, 55.13; H, 5.25; F, 4.08; P, 6.91 Example 32 (S)-4-[ [ [2,4-Dimethyl-6-[(4-fluorophenyl )methoxy]phenyl ] ethyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt_ A. (S)-3-[[(l, 1-Dimethylethyl) diphenylsilyl ]oxy] -4— [ [2-[2- [ (4-fluorophenyl)methoxy] -4,6-dimethy lphenyl ] ethyl ] methoxyphosphinyl]butanoic acid, ' methyl ester_ The Example 31 of Part G acetylenic phosphinate (1.34 g, 1.95 mmole) was sirred in methanol (12 ml) and PtO2 (°·040 9) was added Hydrogen gas was bubbled through the methanol solution for 10 minutes and then a H2(g) atmosphere was maintained with a balloon. After 5 hours, 15 minutes at room temperature, the reaction was complete and argon was bubbled through the reaction solution. The reaction was filtered through a celite pad in a fine sintered glass funnel , and the catalyst was washed with methanol. Solvent was removed from the filtrate to give 1.4 g of a title saturated phosphinate in the form of a clear gum. The title saturated phosphinate was purified by flash chromatography eluting with 60% ethyl acetate/hexane and then rechromatographing material from slightly impure fractions with 6/2.5/1.5 hexane/acetone/toluene. Title saturated phosphinate was obtained in 86% yield (1.17 g). -171TLC R£=.045 (80% ethyl acetate/hexane, silica gel )Mass Spec, m/e 691 (M+H)+, 659 (M-OCH3)+, 635 (M-C9HigOSi)+ B. (S)-4-[[[2,4-Dimethyl-6-[(4-fluoro-. phenyl)methoxy] phenyl ] ethyl ] methoxyphosphinyl] -3-hydroxy-butanoic acid, methyl ester_ The Part A phosphinate (1.16 g, 1.68 mmol) was stirred in THF (25 ml) under argon atmosphere and at room'temp. Glacial acetic acid (0.40 ml) was added dropwise to the phosphinate solution, and then n-C.NQNF (4.6 ml of a 1.1 M THF solution) was added dropwise over 5 minutes. The reaction was stirred at room temperature overnight (18 hours) and then quenched with 50 ml of ice-water. After stirring for several minutes, sat'd NaCl solution was added, and the layers were separated. The organic layer was rotary evaporated to remove the THF, and the resulting residue was dissolved in ethyl acetate. The agueous layer was extracted 2 times with ethyl acetate, and all of the ethyl acetate solutions were combined and washed 2 times with sat'd agueous NaHCO3 solution and once with sat'd NaCl solution, then dried over Na2SO4Filtration and solvent removal gave 1.13 g of title hydroxy phosphinate in the form of a clear oil.

The title hydroxy phosphinate was purified by flash chromatography eluting with 100% ethyl acetate and gave the title hydroxy phosphinate as a clear oil in 83% yield.

TLC Rf = 0.27 (6:4 Acetone/hexane, silica, gel). Mass Spec, m/e 453 (M+H)+, 343 (M-C^HgF)* 172C. (S)-4-[[[2,4-Dimethyl-6-[(4fluorophenyl)methoxy]phenyl]ethyl]hydroxyphosphinyl ] -3-hydroxy-butanoic acid, dilithium salt The Part B phosphinate (0.594 g, 1.3 mmole) was stirred in 19 ml of dioxane at room temperature IN LiOH (4.0 ml) was added with stirring at room temp, and the reaction was wanned to 55°C. After 20 minutes at 55°C, a white thick precipitate formed and 4.0 ml of dioxane was added, and the resulting suspension was stirred ah 55°C. After 2.5 at 55°C, 3 ml of H2O were added and the reaction mixture became clear. After 3 hours at 55°C, the reaction was cooled to room temperature, and the dioxane and water were removed by rotary evaporation leaving title diacid in the form of white solid which was placed under high vacuum for 15 minutes. The title diacid was purified by HP-20 chromatography eluting first with 100 ml of H2O followed by elution with 1:1 MeOH/H2O solution.

Title diacid was obtained as a white lyophilate in 67% yield. TLC Rf=0.36 (7:2:1 n-propanol/NH40H/H20, silica gel).

Mass Spec, m/e (FAB), 425 (M+H)+, 437 (Μ+Ξ+2 Li)+.

Anal Calcd for C21H240gFP·1.15 H20: C, 55.19; H, 5.80; F, 4.16; P, 6.78 Found: C, 55.19; H, 5.80; F, 4.29; P. 6.83 -173Example 33 (S )-4- [ [2- [[1,1' -Biphenyl]-2-yl]ethynyl] hydroxyphosphinyl]-3-hydroxybutanoic acid, dilithium salt A. (s )-4-[[2-[[1,1'-Biphenyl]-2-yl]ethynyl ] hydroxy-pho sphinyl ] -3-hydroxy butanoic acid, methyl ester_ The Example 9, Part D phosphinate (1.61 mmole, 0.985 g) was stirred under argon, at room temperature in 19.6 ml of dry THF. This solution was treated dropwise with glacial acetic acid (6.44 mmol, 0.386 g, 0.368 ml), followed by dropwise addition (8 min) of n-C^HgNF (4.84 mmol, 4.40 ml of a 1.1 M solution in THF). After stirring at room· temp, for 18 hours, the reaction mixture was quenched with 30 ml of ice water. The aqueous layer was extracted with ethyl acetate.

The organic extracts were combined, washed 2 times with saturated aqueous NaHCO^, once with brine, dried over MgS04, filtered and evaporated. The product was isolated via flash chromatography (50 mm column, 6 Merck silica gel, 40% acetone/hexane eluent, 2/min flow rate). Product fractions were concentrated, azeotroped with toluene, and evaporated in vacuo to afford (0.369 g, 0.991 mmol, 62% yield) of the title alcohol as a viscous yellow oil. (Also obtained 0.098 g, 0.263 mmol, 16% of slightly impure product) TLC: Silica gel R^· = 0.35 (50% acetone/hexane).

Mass Spec. CI m/e 373 (M+H)* -174B. (S)-4-[[2-[[1,1’-Biphenyl]-2-yl ]ethynyl ] hydroxyphosphinyl ] -3 hydroxybutanoic acid, dilithium salt The Part A diester (0.739 mmol, 0.275 g) was stirred under argon in 7.57 ml of dioxane and treated with IM LiOH (2.22 mmol, 2.22 ml). This cloudy reaction mixture was heated in a 55°C oil bath for 45 minutes. The mixture was cooled to room temp. The solvents were removed via rotary evaporation and high vacuum (90 minutes). The resulting yellow foam was dissolved in 4 ml of distilled H2O and eluted through an ΞΡ-20 chromatography column (2.5 cm x 19 cm), collecting ml fractions every 1.4 minutes. The column was eluted with H2O until 15 fractions were collected (no longer basic) and then elution with 45/55 methanol/H20 afforded (after lyophilization (2X) and high vacuum pump over ?2°5 ^or 16 hours) 0.231. g (0.649 mmol, 88% yield) of the title diacid as a white lyophilate TLC: Silica gel Rf=0.55 (7:2:1 n-propanol/NH40H/H20) Mass Spec. (FAB m/e 345 (M+H)+, 351 (M+Li)+, 357 (M+2 Li)+.

Anal Calcd for ci8H15O5PLl2 + 1.42 moles H2O MW=381.75: C, 56.63; H, 4.71; P, 8.07 Found: C, 56.62; H, 4.70; P, 8.07 -175Example 34 (S)-4-[ [ 2 - [ 3,5-Dimethyl[1,1’-biphenyl]- 2-yl]ethyl]hydroxyphosphinyl]-3-hydroxybutanoic acid, dilithium salt_ A. 3,5-Dimethyl[1,1'-biphenyl]-2carboxaldehvde_ Pheny lmagnesium bromide was obtained from Aldrich (Cat. No. 17, 156-5) as a 3M solution in ethyl ether.

A mixture of Example 1, Part B dipalladium complex (4.48 mmol, 3.35 g) and triphenylphosphine (35.85 mmol, 9.40 g) was stirred at room temperature under argon in 67.2 ml of anhydrous toluene for 30 minutes. This reaction mixture was cooled to 0°C and phenylmagnesium bromide Grignard reagent (Aldrich) (35.84 mmol, 11.95 ml of a 3M solution in ether was added portionwise (quickly). The resulting mixture was stirred at room temp, for 1.5 hours. The mixture was then cooled at 0° and treated in one portion with 22.4 ml of 6.0 N HCI, and stirred at room temp, for 1 hour. The aqueous layer was separated and extracted with ether. The organic extracts were combined, filtered' through Celite (washed with ether) and the filtrate washed with brine, azeotroped with toluene, and evaporated in vacuo to afford a yellow solid.

. Attempted product purification via (2X) flash chromatography (95 mm diameter column, 6 Merck silica gel, 100% Hexane * 3% ether/Hexane eluent, 2/min flow rate afforded 2.95 g of a yellow solid (1.88 g, 8.96 mmol 100% yield of the title aldehyde and 1.06 g of triphenylphosphine). This compound mixture was used, directly in the -176preparation of the Part B compound. TLC: Silica gel, Rf=0.30 (5% ether/Hexane) Mass Spec. (CI) m/e 211 (M+H)+, 263 (M2+E)+, 473 (M1+M2+H)+ Μχ= Part A aldehyde, M2 = triphenylphosphine.

B. 2-(2,2-Dibromoethenyl )-3,5-dimethylΓ 1,1' -biphenyl] A mixture of Part A aldehyde (8.96 mmol, "1.88 g) and triphenylphosphine (26.4 mmol, 6.90 g) was stirred in 88 ml of dry O-^CL^ at -5 °C for 10 minutes. This reaction mixture was maintained at -5°C as a solution of CBr^ (13.2 mmol, 4.38 g) in 32 ml of dry CH2C12 was added dropwise (20 min). The resulting reaction mixture was stirred at -5°C for 1 hour and became progressively darker orange with time. The mixture was then quenched with 85 ml of saturated aqueous NaHC03· The aqueous layer was extracted with O^C^· The organic extracts were combined, washed once with saturated NaHCO3 (aqueous), and once with brine, dried over MgSO^, filtered and evaporated in vacuo. The product was purified by preabsorbing the crude product in CI^C^ onto 25 g of Merck silica gel and applying this to a flash chromatography column (50 mm diameter, 6 Merck silica gel, 4% C^C^/Hexane eluent, 2/min flow rate), affording 2.18 g (5.96 mmol, 68% yield) of the title vinyl dibromide as a viscous colorless oil. TLC: Silica gel R£=0.37 (4% CH-Cl^, Hexane) Mass Spec. (CI) m/e 365/367/369 (M+H) -177C. 3,5-Dimethyl-2-(l-propynyl)[1,1’bjphenyl] A solution of the Part B vinyl dibromide (5.74 mmol, 2.10 g) in 29.11 ml of anhydrous THF was stirred under argon and cooled to -78°C. This solution was treated dropwise (20 minutes) with n-butyllithium (11.47 mmol, 4.59 ml of a 2.5 M solution in hexanes) resulting in a deep purple solution. After stirring at -78°C for an additional hour, the reaction mixture was quenched at -78°C with 25 ml of saturated NE^Cl (agueous), warmed to room temp, diluted with H2O, and the aqueous layer extracted with 1:1 ether/hexane.

The organic extracts were combined, dried over MgSO4, filtered, and evaporated in vacuo. The product was isolated via flash chromatography (50 mm column, 6 Merck silica gel, 1% ether/hexane eluent) to afford 1.08 g (5.23 mmol, 91% yield) of the title acetylene as a colorless oil which became blue when stored 16 hours at -20°C. TLC: Silica gel 11^=0.32 (100% hexane).

Mass spec. (CI) m/e 207 (M+H)+.

D. (S)-3-[ (1,1-Dimethylethyl)dipheny125 silyl]oxy]-4-[[2-[3,5-dimethyl[1,1'biphenyl]-2-yl]methoxyphosphinyl]butanoic acid, methyl ester A solution of the Part C acetylene (4.61 mmol, 0.950 g) in 27.3 ml of dry THF was stirred under argon and cooled to -78°C. n-Butyllithium (4.61 mmol, 1.84 ml of a 2.5 M solution in hexanes) was added dropwise (20 min) resulting in a dark purple/brown solution. The reaction 178mixture was stirred at -78°C for 1 hour (reaction mixture became a slurry) warmed to 0°C and stirred 15 min. (reaction mixture returned to a dark purple homogeneous solution) and finally recooled to -40°C (remained homogeneous). This acetylenic anion solution at -40°C was then added dropwise (25 min) to a solution of the Example 1, Part F phosphinyl chloridate (8.12 mmol) in 27.3 ml of dry THF which had been cooled to -78°C as it was stirred under argon. After the addition of the acetylenic anion solution to the phosphinyl chloridate solution was complete, the dark orange reaction mixture was stirred at -78°C for 1 hour and then guenched at -78°C with 50 ml of saturated NH^Cl, warmed to room temp, and diluted with H2O. The aqueous layer was extracted with ether. The organic extracts were combined, washed once with saturated NaHCO^ (aqueous), once with brine, dried over MgSO^, filtered and evaporated in vacuo. The product was isolated via flash chromatography (50 mm diameter column, 6 Merck silica gel, 50% ethyl acetate/hexane eluent, 2/min flow rate) to afford 0.609 g (0.945 mmol, 21%) of the title phosphinate as a golden orange oil.

TLC: Silica gel Rf=0.32 (50% ethyl acetate/Hexane) Mass Spec. (CI) m/e 639 (M+H)+ E. (S)-4- [ [2- [3,5-Dimethyl [1,1’ -biphenyl]2-yl ] ethyl ] hydroxyphosphinyl ] -3- (tbutyldiphenylsilyloxyjbutanoic acid, dilithium salt__ Argon was bubbled through a methanol (13 ml) solution of the Part D acetylenic phosphinate -179(1.37 mmol, 0.876 g) for 10 minutes. 10% Pd/C (0.315 g) was added and the reaction mixture was subjected to Parr hydrogenation at 40 psi. After shaking for 24 hours, the reaction mixture was filtered through a Celite pad in a sintered glass funnel. The Celite was washed with methanol and the filtrate was evaporated in vacuo to afford 0.896 g of a yellow oil which was purified via flash chromatography (50 mm diameter column, 6" Merck silica gel, 40% 50% ethyl acetate/Hexane eluent) to afford 0.680 g (1.06 mmol, 77% yield) of the title saturated phosphinate as a pale yellow foam. Stripping the flash column by eluting with methanol produced an additional 0.087 g of slightly impure product. TLC: =0.27, Silica gel (50% acetone/hexane).

Mass Spec. (CI) m/e 643 (M+H)+.

F. (S)-4-[[2-[3,5-Dimethyl[1,1'-biphenylΙΣΟ 2-yl]ethyl]hydroxyphosphinyl]-3hydroxybutanoic acid, dilithium salt' The Part E phosphinate (1.03 mmol, 0.66 g) was stirred under argon at room temp, in 12*.65 ml of dry THF. This solution was treated dropwise with glacial acetic acid (4.12 mmol, 0.247 g, 0.236 ml), followed by dropwise addition of n-C^NgNF (3.09 mmol, 2.81 ml of a 1.1M solution of THF). After stirring at room temperature for 16 hours, the reaction mixture was quenched with 25 ml of ice water. The aqueous layer was extracted with ethyl acetate. The organic extracts were combined, washed 2 times with saturated aqueous 180 NaHCO3, once with brine, dried over MgS04, filtered and evaporated in vacuo. The product was purified via flash chromatography (40 mm ‘column, Merck silica gel, 50% acetone/Hexane eluent) to afford 0.363 g (0.898 mmole, 87% yield) of the title alcohol as a white solid. TLC: Silica gel, Rf=0.3 0 (50% acetone/Hexane).

Mass Spec (FAB) m/e 405 (M+H) + ..

G. (S)-4-[[2-[3,5-Dimethyl[l,l'-biphenyl]2-yl]ethyl]hydroxyphosphinyl] -3hydroxybutanoic acid, dilithium salt The Fart F diester (0.878 mmol, 0.355 g) was stirred under argon in 9 ml of dioxane and treated with IM LiOH (2.63 mmol, 2.63 ml). This homogeneous reaction mixture was heated in a 55°C oil bath. After stirring at 55®C for 10 minutes, the. reaction mixture became a white suspension.

An additional 9 ml of dioxane and 2 ml of H^O were added, and the suspension was heated at 55°C for 45 minutes, then cooled to room temperature. The solvents were removed by rotary evaporation and high vacuum (1 hour). The resulting white solid was eluted through an HP-20 chromatography column (18 cm x 2.5 cm). 10 ml fractions were collected every 1.4 minutes. The column was eluted with-^0 until 15 fractions were collected and then elution with 1:1 methanol/HjO afforded [after lyophilization (3X) and high vacuum pump over P20g (4 x8 hours)] 0.289 g (0.744 mmol, 85% yield) of the title diacid as a white lyophilate. -181TLC: silica gel, R^=0.56 (7:2:1, n-propanol/MB^OH/E^O).

Anal Calcd for C2oH23°5PLl2 + 0.34 moles of H20 M.W.=394.31: C, 60.92; Ξ, 6.05 Found: C, 60.95; H, 6.18 Mass Spec. (FAB) m/e 389 (M+H)+.

Example 35 (S)-4-[[2-[4’-Fluoro-3,5-dimethyl[1,1’-biphenyl]-2yl]ethyl]hydroxyphosphinyl]-3-hydroxybutanoic acid, dilithium salt A. Bromo(4-fluorophenyl)magnesium Magnesium metal turnings (44.35 mmol, 1.08 g) were flame dried, then stirred under argon in 40 ml of anhydrous ether. With vigorous stirring, l-bromo-4-fluorobenzene (40.3 mmol) was added dropwise to the magnesium. The reaction was initiated in an ultrasound device and then the halide was added dropwise at a rate sufficient to maintain reflux. After addition of the bromide was complete, the reaction mixture was stirred at room temperature for 20 minutes, then heated to reflux and finally cooled to room temperature. This procedure yielded a golden orange transparent Grignard solution containing 40.32 mmol of title Grignard as a 0.91 M solution in ether.

B. 4’-Fluoro-3,5-dimethyl[1,1*-biphenyl ] 2 -carboxaldehyde Reference: Stockker et al, Journal of Med. Chem., 29, 170-181 (1986).

A mixture of the Example 26 Part B palladium complex (4.35 mmol, 3.20 g) and 182triphenylphosphine (40.32 mmol, 10.58 g) was stirred at room temperature under argon in 67.2 ml of anhydrous toluene for'30 minutes. Then th-ig reaction mixture was cooled to 0°C and the Part A Grignard reagent (40.32 mmol, 44.43 ml) was added portionwise (quickly). The resulting mixture was stirred at room temperature for 1.5 hours. The mixture was then cooled to 0°C and treated in one portion with 21.75 ml of 6.0 N HCl and stirred at room temperature for 1 hour. The aqueous layer was separated, extracted with ether and the combined organic extracts filtered through Celite. The celite was. washed with ether and the combined filtrates were washed with brine, azeotroped 2 times with toluene, and stripped, to afford an orange-yellow solid. Attempts at isolating the title aldehyde by-flash chromatography using a 95 mm diameter column, 6 Merck silica gel, hexane eluent followed by 3% Et^O/hexane eluent, 2"/min flow rate, resulted in a final reaction product mixture of the desired title aldehyde and triphenylphosphine as a pale yellow solid (3.70 g - assume this contains 8.7 mmol, 1.99 g, 100% yield of title aldehyde + 1.70 g of triphenylphosphine). This compound mixture was used directly in the preparation of Part C compound.

TLC: silica gel 11^=0.25 (5% ether/Hexane) NMR: (270 MHz, CDC13) -183C. 2-(2,2-Dihromoethenyl)-4’-fluoro-3,5dimethvlΓ1,1 ’-biphenyl ] A mixture of the Part B aldehyde (8.70 mmol, 1.99 g" ) and triphenylphosphine (26.1 mmol, 6.85 g) was stirred in 87 ml of dry CH^Cl^ at -5°C for 10 minutes. This reaction mixture was maintained at -5°C as a solution of CBr4 (13.05 mmol, 4.33 g) in 43 ml of dry CH2C12 was added dropwise over 25 minutes. The resulting reaction mixture was stirred at -5°C for 1 hour producing a dark orange' solution which was then quenched with 80 ml of saturated aqueous NaHCO^. The aqueous layer was extracted 4 times with CH2C12· The combined organic extracts were washed once with saturated aqueous NaECO^ and once with brine. The CE2C12 extract was dried over MgS04, filtered and the filtrate combined with 25 g of Merck silica gel. The solvent was evaporated and the preabsorbed product was purified via flash chromatography (50 mm diameter column, 6" Merck silica gel, 4% CH2C12/Hexane eluent, 2’’/min flow rate) to afford 2.32 g (6.04 mmol, 69% yield) of the title vinyl dibroraide as a colorless oil.

TLC: silica gel, 11^=0.43 (5% CH2C12/Hexane).

Mass Spec. (CI) m/e 383/385/387 (M+H)+.

D. 4' -Fluoro-3,5-dimethyl-2- (1-propynyl) [1,1' -biphenyl]_________ A solution of the Part C vinyl dibromide (5.99 mmol, 2.30 g) in 33 ml of anhydrous THF was stirred under argon and cooled to -78°C. This solution was treated dropwise (25 minutes) with n-butyllithium (11.97 mmol, 4.79 ml of a 2.5 M -184solution in hexanes), resulting in a deep purple solution. After stirring at -78°C for an additional hour, the reaction mixture was quenched at -78°C with 25 ml saturated agueous NH^Cl, warmed to room temperature and diluted with 25 ml of H^O. The agueous layer was extracted 4 times with 1:1 ether/hexane. The organic extracts were combined, dried over MgS04, filtered and evaporated. The product was isolated via flash chromatography (50 mm column, 6" Merck silica gel, 0.50% ether/hexane eluent, 2/mm flow rate) to afford 1.25 g (5.57 mmol, 93% yield) of the title acetylene, as a colorless oil which turns blue when stored at 20eC.

TLC: silica gel, Rf=0.25 (100% hexane) Mass Spec. (CI) m/e 225 (M+H)+.

E. (S)-4-[[2-[4’-Fluoro-3,5-dimethyl[1,1’-biphenyl]-2-yl]ethynyl]hydroxyphosphinyl ]-3-(t-butyldiphenylsilyloxy)butanoic acid, methyl ester A solution of the Part D acetylene (5.24 mmol, 1.18 g) in 28 ml of dry THF was stirred under argon and cooled to -78°C. n-Butyllithium (5.24 mmol, 2.10 ml of a 2.5 M solution in hexane) was added dropwise( 25 min) as the reaction mixture became-dark purple/brown. The reaction mixture was then stirred at -78°C for 1 hour, warmed to 0°C, stirred for 10 minutes, and recooled to -78°C. This acetylenic anion solution at -78°C was then added dropwise (20 minutes) to a solution of the Example 1 Part F phosphinyl chloridate (8.32 mmol) in 28 ml of anhydrous THF -185 which had been cooled to -78°C as it was stirred under argon. After the addition was complete, * the dark orange reaction mixture was stirred at -78°C for 1 hour and then quenched at. -78°C with saturated aqueous NH^Cl, warmed to room temperature and diluted with H^O. The aqueous layer was extracted 4 times with ether. The organic extracts were combined and washed once with saturated aqueous NaHCO^, once with brine, dried over MgS04, filtered, and evaporated. The product was isolated via flash chromatography (50 mm diameter column, 6 Merck silica gel, 40% ethyl acetate/hexane eluent, 2/min flow rate) to afford 0.730 g (1.11 mmol, 21% yield) of the title acetylenic phosphinate as a green viscous oil.

TLC: silica gel 11^=0.36 (50% ethyl acetate/hexane) Mass Spec (CI) m/e 657 (M+H)+ F. (S )-4-[ [2-[4’-Fluoro-3,5-dimethyl[1,1’-biphenyl]-2-yl]ethyl]hydroxyphosphinyl ] -3- (t-butyldiphenylsilyloxy) butanoic acid, methyl ester Argon was bubbled through.a methanol 9.9 ml solution of the Part E acetylenic phosphinate (1.04 mmol, 0.685 g) for 10 minutes. 10% Pd/C 0.239 g was added and the reaction mixture was subjected to Parr hydrogenation at 40 psi. After shaking for 24 hours, the reaction mixture was filtered through a Celite pad in a sintered glass funnel, the·Celite was washed with methanol, and the filtrate was evaporated to afford 0.638 g of a green oil. The product was purified via flash chromatography (40 mm diameter column, 6 Merck -186 silica gel, 45% ethyl acetate/hexane eluent, 2/min flow rate) to afford 0.530 g (0.802 mmol 77% yield) of the title saturated phosphinate as a pale yellow foam. Also obtained 0.09 g (0.136 mmol, 13%) of slightly impure product.

TLC: silica gel. Rf=0.30 (50% ethyl acetate/hexane) Mass spec. (CI) m/e 661 (M+H)+ G. (S)-4-[[2-[4’-Fluoro-3,5-dimethyl10 [1,1’-biphenyl]-2-yl]ethyl]methoxyphosphinyl] -3 -hydroxybutanoic acid, methyl ester The Part F phosphinate (0.794 mmol, 0.525 g) was stirred under argon at room temperature in 15 9.74 ml of anhydrous THF. This solution was treated dropwise with glacial acetic acid (3.18 mmol, 0.191 g, 0.182 ml), followed by dropwise addition of n-C^HgNF (2.38 mmol, 2.17 ml of a 1.1 M solution in THF). After stirring at room 20 temperature for 16 hours, the reaction mixture was guenched with 15 ml of ice water. ' The aqueous layer was extracted 3 times with ethyl acetate.

The organic extracts were combined, washed 2 times with saturated aqueous NaHC03, 1 time with brine, dried over MgS04, filtered and evaporated. The product was purified via flash chromatography (40' - mm diameter column, 6 Merck silica gel, 50% acetone/hexane eluent, 2’’/min flow rate).

Product fractions were concentrated and azeotroped 30 to dryness with toluene to afford 0.281 g (0.665 mmol, 84% yield) of the title alcohol as a white solid. An impurity visible by 270 MHz ^H NMR not separable/visible in various TLC systems. was 187 TLC: Silica gel, 11^=0.31 (50% acetone/hexane) NMR: (270 MEz, CDC13).

Mass Spec. (CI) m/e 423 (M+H)+ H. (S)-4-[[2-[4'-Fluoro-3,5-dimethyl[1,1'-biphenyl]-2-yl]ethyl]hydroxyphosphinyl] -3 -hydroxybutanoic acid, dilithium salt_ The Part G diester (0.473 mmol, 0.20 g) was 10 stirred under argon in dioxane (4.84 ml) and treated with IM LiOH (1.42 mmol, 1.42 ml). This homogeneous reaction mixture was heated in a 55°C oil bath. After stirring at 55°C for 10 minutes, the reaction mixture became a white suspension.

The mixture was maintained at 55°C for an additional 45 minutes, then cooled to room temperature. The solvents were removed by rotary evaporation and high vacuum (1 hour). The resulting white foam was dissolved in 4 ml of distilled H2O and eluted through an ΞΡ-20 chromatography column (16 cm x 2.5 cm). 10 ml fractions were collected every 1.4 minutes. The column was eluted with H^O until 15 fractions were collected and then elution with 1:1 methanol/H20 afforded (after lyophilization (2X) and high vacuum pump over P20g ^or 22 hours) 0.158 g (0.389 mmol, 82% yield) of the title diacid as a white lyophilate.

TLC: silica gel R£=0.59 (7:2:1, n-propanol/NH4OH/H20) Mass Spec (FAB) m/e 395 (M+H)+ Anal Calcd for C2o222^05RL22+0*39 m°les H20 -188MW=413.25: C, 58.12; H, 5.56 Found: C, 58.14; H, 6.09 Example 36 (S)-4-[[2-[5-(4-Fluorophenyl)-3-(l-methylethyl)-1phenyl-lH-pyrazol-4-yl]ethynyl ] methoxyphosphinyl ] 3-hydroxybutanoic acid, methyl ester_ A. 4-Fluoro-p-oxobenzenepropanoic acid, ethyl ester_ 60% Sodium hydride in mineral oil (17.4 g, 0.43 mmole) was washed twice with dry hexane, . dried in vacuo then treated with neat diethylcarbonate (44.3 ml, 0.36 mmole) followed by the dropwise addition of p-fluoro-acetophenone (22 ml, 0.18 mole). After about 10% of the ketone had been added, 4 drops of ethanol was added to initiate refluxing and the remainder of the p-fluoro-acetophenone was added over 1.0 hour at a rate that maintained reflux conditions. The yellow solid which formed was slurried in dry ether (250 ml) and refluxed for an additional 3.0 hours under argon.

The reaction mixture was cooled in an ice bath, diluted with ether (200 ml) and treated slowly with water (1.3 liters) until all the solids dissolved. The agueous phase was separated from the organic phase, acidified with 12N HCl (32 ml) to pH 1.0 and extracted with ether (2 x 500 ml).

The combined organic extracts were washed with brine (200 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness. The crude product (44.0 g) was distilled under reduced pressure (3.5 mm) to give title compound as a homogeneous oil -189(24.88 g, 65.8%).

TLC: Rf 0.46 (Silica gel; CH2C12:hexane-4:1}.

B. 4-Fluoro-cr-(2-methyl-l-oxopropyl )-β5 oxobenzenepropanoic acid, ethyl ester 60% Sodium hydride in mineral oil (10.3 g, 0.26 mmole) was washed twice with dry hexane, dried in vacuo, suspended in dry tetrahydrofuran (245 ml) and cooled down to 0° (ice water bath) under argon. The suspension was treated dropwise with Part A compound (24.5 g, 0.12 mole) over a 20-minute period, warmed to room temperature and stirred for.another 30 minutes. The reaction mixture was cooled down to 0° (ice water bath), treated dropwise with isobutyryl chloride (18.62 ' g, 0.17 mole), warmed to room temperature and stirred for 3.0 hours. The mixture was cooled down to 0° (ice water bath), quenched with water (200 ml) to produce a homogeneous solution and evaporated on a rotary evaporator to remove most of the tetrahydrofuran. The aqueous phase was acidified with 10% HCI (37 ml) to pH 1.0 and extracted with ether (3 x 100 ml). The combined organic extracts were washed with brine (50 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness, to give an oil (36.85 g) which was a mixture of starting material and two other products.

TLC: Rf 0.46, 0.33, 0.20 (Silica gel; ‘hexane-4:1, UV). -190C. 5-(4-Fluorophenyl)-3-(1-methylethyl)-1 phenyl-lH-pyrazole-4-carboxylic acid, ethyl ester_________ Crude Part B compound (36.85 g, £ 0.12 mole) was dissolved in glacial acetic acid (151 ml), treated portionwise with 97% phenylhydrazine (18.1 ml, 0.18 mole) under nitrogen and stirred at room temperature for 19 hours. The reaction mixture was poured into water (350 ml), extracted with ether (3 x 100 ml) and the combined organic extracts were washed with saturated NaHCO^ until the aqueous layer was basic, brine (500 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness.

The dark orange oil was evaporated once from petroleum ether (300 ml) to obtain a yellow solid. This crude product was triturated with petroleum ether (100 ml) to give a crude product (15.3 g) which in turn was chromatographed on a silica gel column (LPS-1), eluting the column with CH2C12:hexane (2:1) to give 11.53 g of pure product. The mother liquor (26.4 g) on chromatography on a silica gel column (LPS-1) and trituration of the compound obtained gave an additional 7.12 g of desired product (total yield: 18.65 g or 44.1%).' A small amount of title compound was recrystallized from Et20: hexane to give homogeneous solid, m.p. 92-93°C.

TLC: Rf 0.35 (Silica gel: C^C^: hexane-4:1) Anal Calcd: C, 71.57; H, 6.01; N, 7.95; F, 5.39 Found: C, 71.62; H, 5.99; N, 7.91; F, 5.54. -191 D. 5-(4-Fluorophenyl)-3-(l-methylethyl)-1 phenyl-lH-pyrazole-4-methanol_ A solution of Part C compound (11.53 g, 32.7 mmole) in anhydrous ether (142 ml) was added dropwise over a period of 1.5 hours to a cooled (0°; ice-salt bath) suspension of lithium aluminum hydride (3.67 g, 96.7 mmoles) in anhydrous ether (70 ml) under argon. The greenish suspension was allowed to warm up to room temperature over a period of 1.5 hours, cooled back down to 0° (ice-salt bath) and quenched by the dropwise addition of water (20 ml) until gas evolution ceased. The thick slurry was diluted with ether (100 ml) and filtered, washing the precipitates well with ethyl acetate (3 x 150 ml). The combined organic extracts were washed with brine (50 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness to give a cream-colored solid (10.3 g, 100% crude yield). 100 mg of the crude product was recrystallized from Et2O: hexane to give title compound (58 mg) as white crystals, m.p. 138-140°.

TLC: Rf 0.01 (Silica gel; C^Cl^ Anal Calcd: C, 73.52; Ξ, 6.17; F, 6.12; N, 9.03 Found: C, 73.16; H, 6.15; F, 6.12; N, 8.90 MS (M+H)+=311 E. 5-( 4-Fluorophenyl)-3-(l-methylethyl)l-phenyl-lH-pyrazole-4-carboxaldehyde A solution of crude Part D compound (10.2 g, ^32.7 mmole) in dry dichloromethane (85 ml) was added rapidly to a solution of pyridinium chlorochromate (21.23 g, 98.4 mmoles) in dry -192dichloromethane (125 ml) and the resulting dark brown solution was stirred at room temperature under nitrogen for 4.0 hours. The mixture was diluted with ether (750 ml) and stirred for 10 minutes. The supernatant solution was decanted from the tar-like residue and the residue was triturated with dichioromethane (2 x 100 ml). The dichioromethane extracts were diluted with ether (750 ml) and the combined extracts filtered through a silica gel pad. The clear filtrate was evaporated to dryness to give a crude product (10.0 g).

The crude product was chromatographed on a silica gel column (Baker, 60-200 mesh, 400 ml), eluting the column with C^Cl^hexane (4:1) to give title compound as a solid (9.6 g, 95.2%). An analytical sample (72 mg, m.p. 108-110°) was obtained by recrystallizing 100 mg from hexane. TLC: Rf 0.58 (silica gel; CH2C12; UV).

Anal Calcd: C, 74.01; H, 5.56; N, 9.09; F, 6.16 Found: C, 74.10; H, 5.52; N, 9.12; F, 6.29 MS (M+H)*=309 F. 4-(2,2-Dibromoethenyl)-5-(4-fluorophenyl )-3-(1-methylethyl)-1-phenyllH-ovrazole_ A mixture of Part E compound (2.0 g, 6.48 mmole) and triphenylphosphine (5.10 g, 19.2 mmoles) in dry dichioromethane (30 ml) was cooled down to -5° to -10° (ice-salt bath) under argon and treated dropwise over a period of 5 minutes with a solution of carbon tetrabromide (3.22 g, 9.61 mmoles) in dry dichioromethane (10 ml). The -193reaction mixture was stirred at 15°-20° for 15 minutes then poured onto saturated NaHCO^ (10 ml) and extracted with dichloromethane (3 x 50 ml).

The combined organic extracts were washed with saturated NaHCO3 (10 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product mixture (9.33 g) was chromatographed on a silica gel column (LPS-1) eluting the column with CH2C12:hexane mixtures • (1:9, 1:1; 4:1) to give title compound as a solid (2.75 g, 91.6%). Recrystallization of a small sample of title compound gave white crystals, m.p. 88-90°.

TLC: Rf 0.85 (silica gel; CH2C12 :hexane-4:1) Anal Calcd: C, 51.75; H, 3.69; N, 6.04; F, 4.09; Br, 34.43 Found: C, 51.96; H, 3.51; N, 5.97; F, 4.22; Br, 34.77 MS (M+H)+=465.

G. 4-Ethynyl-5-(4-fluorophenyl)-3-(1methylethyl)-1-phenyl-ΙΗ-pyr azole A solution of Part F compound (2.64 g, 5.67 mmole) in dry tetrahydrofuran (10.5 ml) was cooled down to -78° (dry ice-acetone) under argon and treated dropwise with 1.6M n-BuLi/hexane (7.16 ml, 11.37 mmoles). The resulting suspension was stirred at -78° for 1 hour and 20 minutes, quenched by the dropwise addition of 25% NH^Cl (10 ml) and allowed to warm up to room temperature.

The reaction mixture was extracted with ether (3 x 50 ml) and the combined organic extracts were -194washed with brine (20 ml), dried (anhydrous MgS04), filtered and evaporated to dryness to give title compound as a light brown solid (1.79 g).

The crude product was chromatographed on a silica gel column, eluting the column with Et2O:hexane (5:95) to give title compound as a light gold-colored solid (1.08 g, 97.4%). Recrystallization of a small sample from hexane gave white, fluffy crystals, m.p. 106-108°.

TLC: Rf 0.70 (silica gel; Et2O:hexane-l:9; developed 2X).

Anal Calcd: C, 78.92; H, 5.63? N, 9.21; F, 6.24 Found: C, 79.22; H, 5.53; N, 9.28; F, 6.23 MS (M+H)+=305 H. (S)-3-[[(l, 1-Dimethylethyl)diphenylsilyl]oxy]-4-[[[5-(4-fluorophenyl)-3(l-methylethyl)-1-phenyl-lHpyr az ol-4-yl ] ethynyl ] methoxypho sphinyllbutanoic acid, methyl ester A mixture of the crude Example 1 Part F phosphonic monomethyl ester (2.77 g, 5.55 mmoles) and trimethylsilyldiethylamine (2.1 ml, 11.05 mmoles) in dry dichloromethane (10 ml) was stirred at room temperature under argon for 1.0 hour. The mixture was evaporated to dryness, azeotroped with dry benzene (20 ml) and dried in vacuo (pump) for 15 minutes. The viscous oil was re-dissolved in dry dichloromethane (10 ml), treated with one drop of DMF, cooled down to -10* (ice-salt bath) and treated dropwise with oxalyl chloride (530 yl, 6.08 mmoles). Vigorous gas evolution was observed and the dark yellow -195solution was stirred at -10? for 15 minutes, then at room temperature for 1.0 hour. The reaction mixture was evaporated to dryness, azeotroped with benzene (20 ml) and dried in vacuo.

A solution of Part G compound (1.12 g, 3.67 mmoles) in dry tetrahydrofuran (9.0 ml) was cooled down to -78° (dry ice-acetone) under argon and treated with 1.6M n-BuLi/hexane (2.3 ml, 3.67 mmoles) and stirred at -78° for 30 minutes. The above phosphochloridate was dissolved in dry tetrahydrofuran (6.'5 ml), cooled down to -78° (dry ice-acetone) under, argon and treated dropwise by cannula with the solution of the acetylene anion, both solutions being kept at -78° throughout the addition. The reaction mixture was stirred at -78° for 30 minutes, quenched by the dropwsie addition of 25% NH^Cl (6.0 ml) then warmed to room temperature. The mixture was extracted with ether (3 x 100 ml) .and the combined organic extracts were washed with 25% NE^Cl (10 ml), brine (25 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness.

The crude product mixture (~4.2 g)-was chromatographed on a silica gel column, eluting the column with hexane:acetone (9:1) to give title compound as a light brown oil (1.54 g, 57.0%).

TLC: Rf 0.33 (silica gel; hexane:acetone-7:3 ) I. (S)-4-[[2-[5-(4-Fluorophenyl)-3(1-methylethyl)-1-phenyl-lH-pyrazol-4yl]ethynyl]methoxyphosphinyl]-3hvdroxvbutanoic acid, methvl ester -196A solution of Part H compound (593.9 mg; 0.81 mmole) in dry tetrahydrofuran (8.0 ml) was treated successively with glacial acetic acid (190 μΐ, 3.24 mmoles) and IM Bu^NF (2.54 ml, 2.54 mmoles) and stirred overnight at room temperature under argon. The reaction mixture was cooled down to 0°C (ice water bath), treated with 5% KES04 (8.5 ml) and extracted with ethyl acetate (3 x 75 ml). The combined organic extracts were washed with 5% KHS04 (10 ml), brine (20 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness.

The crude product was dissolved in a mixture of ether (14 ml) and dry tetrahydrofuran (10 ml), cooled down to 0° (ice-salt bath), treated with excess diazomethane in ether and stirred at 0° for 3.0 hours. The reaction mixture was quenched by the dropwise addition of glacial acetic acid, evaporated to dryness and dried in vacuo. The crude product was chromatographed on a silica gel column eluting the column with acetone:hexane (1:2) to give title compound as a semi-solid (325.6 mg, 80.6% yield).

Example 37 (S)-4- [ [2- [5-(4-Fluorophenyl )-3-( 1-methylethyl)-1phenyl-lH-pyrazol-4-yl] ethynyl] hydroxyphosphinyl] -3hydroxybutanoic acid, dilithium salt_ A solution of Example 36 compound (325 mg, 0.65 mmole) in dioxane (7.7 ml) was treated with IN LiOH (2.25 ml, 2.25 mmole) stirred at 55° (oil bath) under nitrogen for 1.5 hours then at room temperature for 16 hours. The reaction mixture -197was evaporated to dryness and dried in vacuo. The crude product was chromatographed on an HP-20 column (1" x 5 ), eluting the column with steam-distilled water (400 ml) and 50% aqueous CH^OH (500 ml). The desired fractions were combined, evaporated to dryness and dried in vacuo. The solid product was dissolved in steam-distilled water and lyophilized to give title product as a fluffy solid lyophilate (317.1 mg, 96.4%).

TLC: Rf 0.33 (silica gel; i-PrOHzNH^OH:^0-8:1:1).

Anal Calcd for C24^2FN2°5P*2 Li· 1.3 1^0 (Eff.

Mol. Wt.=505.861): C, 56.99, H, 4.90;, N, 5.54; F, 3.75; P, 6.12 Found: C, 56.98; H, 5.17; N, 5.46; F, 3.90; P, 6.26 H^-NMR Spectrum (400 MHz, CD^OD): δ 1.40 (d, 6H, J=7 Hz) 1.81-1.98 (m, 2H) 2.35 (dd, IB, J=9, 15 Hz) 2.48 (dd, IH, J=4, 15 Hz) 3.35 (septet, IH, J=7 Hz) 4.42 (m, IH) 7.08-7.41 (m, 9H).

IR(KBr): 2173 cm1 (C=C).

Example 38 (e )-4- [ [2 - [5 - (4-Fluorophenyl )-3-( 1-methylethyl )-1phenyl-lH-pyrazol-4-yl ] e thenyl ] methoxyphosphinyl ] -3 hydroxybutanoic acid, methyl ester_ -198A. [2-[5-(4-Fluorophenyl)-3-(1-methylethyl )-l-phenyl-lH-pyrazol-4-yl]2-hydroxyethyl]phosphonic acid, dimethyl ester_ A -78°C (C02/acetone) solution of dimethyl methy Iphosphonate (2.81 ml, 25.9 mmole) in dry THF (50 ml) was treated with a 1.6M n-3uLi solution in hexanes (15.2 ml, 24.3 mmole) dropwise over 15 minutes and the white suspension (after ~15 minutes) stirred under argon at -78°C for one hour. Example 36 Part E pyrazole aldehyde (5.0 g, 16.2 mmole) in dry THF (15 ml) was added dropwise over 10 minutes and the yellow mixture stirred at -78°C for 30 minutes. The mixture was quenched with saturated NH^Cl (20 ml) and allowed to warm to room temperature. The mixture was partitioned between H20 and EtOAc, the organic phase washed with brine, dried over anhydrous Na2SO4 and evaporated to give 7.158 g of crude title β-hydroxyphosphonate as a yellow foam. A small sample was crystallized from hexanes to give pure title compound as white crystals with m.p. = 126°-128°C.

TLC (1:1) hexane-acetone, Rf = 0.27.

Mass Spec. (M+H+=433+ observed).

Anal Calcd for C22^26°4N2^^: C' 6.06; N, 6.48; F, 4.39; P, 7.16 Found: C, 60.95; H, 6.06; N, 6.41; F, 4.22; P, 7.27 -199NMR (CDC13): 1.42 (6Ξ, d) 94-2.40 (2H, m) 3.29 (IH, septet) 62+3.63 (2 doublets, 3.91 (IH, s) 5.11 (IH, bm) 90-7.30 (9H, m) ppm. 13C NMR (CDC13): δ 22.6, 26.5, 32.8 (Jc_p=136.3 Hz), 52.1 (Jc-p=5.7 Hz), 60.8, 115.0, 115.4, 119.3, 119.5, 124.7, 126.3, 126.6, 128.5, 132.2, 132.3, 139.4, 139.5, 156.7, 164.5 (Jc_p=265 Hz) ppm.

B. (E)-[2-[5-(4-Fluorophenyl)-3-(lmethylethyl)-l-phenyl-LH-pyrazol-4yl]ethenyl]phosphonic acid, dimethyl ester_ A solution of the crude Part A hydroxy phosphonate (7.158 g) in dry benzene (40 ml) was treated with pTsOH*H2O (304 mg, 1.6 mmole) and the mixture refluxed through a Dean Stark trap containing 4A sieves for 2 hours under argon. The mixture was cooled, diluted with EtOAc, the organic phase washed with saturated NaHCO3 (2X) and brine then dried over anhydrous Na2SO4 and evaporated in vacuo to give 6.893 g of a yellow oil. The crude oil was triturated with hexane to give 5.692 g of nearly pure vinyl phosphonate as off-white crystals. One recrystallization from EtOAc-hexane gave in 2 crops 5.655 g (84.2%, total -200143-144 C.

H, 5.84; P, 7.47. F, 4.54; 18.5 Hz yield from aldehyde) of pure title trans vinyl phosphonate as white needles with m.p.

TLC (1:1) hexane-acetone, Rf = 0.40 Mass. Spec. (M+H+ = 415+ observed).

Anal Calcd for C22H24O3PN2F: C, 63.76; N, 6.76; F, 4.58, Found: C, 63.99; H, 5.95; N, 6.76; P, 7.31. 1H NMR (CDC13): δ 1.42 (6E, d) 3.27 (1H, septet) 3.70 (6H, d, JH_p=11.0 Hz) .67 (IH, dd, ^=18.4 Hz, 7.02-7.30 (9H, m) 7.34 (IH, dd, 1^=18 Hz, 0^=24.3 Hz) ppm. 13C NMR (CDC13): 621.8, 27.1, 52.1 (Jc_p=5.7 Hz), 110.4 (Jc-p=193.1 Hz), 114.7 (Jc-p=24.6 Hz), 115.9, 116.2, 122.2, 124.9, 125.5, 127.3, 128.8, 132.0, 139.2, 140.2 (Jc-p=7.6 Hz), 142.1, 158.0, 163.4 (Jc_p=249.8 Hz) ppm.

C. (E) - [2-[5-(4-Fluorophenyl)-3-(1-methylethyl )-l-phenyl-lH-pyrazol-4-yl ] ethenyl]phosphonic acid, monomethyl ester A solution of the Part B dime thy lphosphonate (2.0 g, 4.83 mmole) in dioxane (15 ml) was treated with 1.0N LiOH (7.3 ml) and the mixture refluxed for one hour under argon. The mixture was cooled to room temperature, acidified to pH 1 with 1.0N HCI, extracted with EtOAc (2X), the organic phase washed with 1.0N HCI and brine then dried over -201anhydrous Na2SO4 and evaporated in vacuo to give crude mono acid which slowly crystallized on standing from hexane. Crystals were collected by filtration and dried in vacuo to give 1.918 (99%) of title mono acid as a white crystalline solid with m.p. 168-170°C. An analytical sample was prepared by recrystallization from EtOAc-hexane.

Rf=0.40. 62.99; H, TLC (8:1:1) CH^C^-CH^H-HOAc, Mass Spec (M+E =401 observed). Anal Calcd for C^H^O^^F: C, .54; N, 7.00; F, 4.75; P. 7.74 Found: C, 62.95; H, 5.57; N, 6.87; F, 4.58; P, 7.58 NMR (CDC13): δ 1.40 (63, d) 3.26 (IH, septet) 3.65 (3Ξ, d, JH_p=11.6 Hz) .74 (1Ξ, dd, JH_H=17.9 Hz, JH_p=19.5 Hz) 7.00-7.36 (10H, m) 8.65 (IH, bs) ppm. 13C NMR (CDC13): δ 21.8, 27.0, 51.8 (Jc_p=6.3 Hz), 111.7 (Jc_p=198.7 Hz), 114.6 (Jc_p=24.6 Hz), 115.8, 116.2, 124.9, 125.4, 127.3, 128.7, 131.9, 132.1, 138.8 (Jc_p=7.6 Hz), 139.2, 142.0, 157.9, 162.9 (Jc_p=249.8 Hz) ppm.

D. (E)-4-[[2-[5-(4-Fluorophenyl)-3-(1methylethyl)-l-phenyl-lH-pyrazol-4yl ] ethenyl ] methoxyphosphinyl ] -3 oxobutanoic acid, methyl ester_ The dianion of methyl acetoacetate was prepared according to the method described in Example 26 using the following quantities: methyl acetoacetate (815 μΐ, 7.53 -202nnnole) 60% NaH dispersion in oil (324 mg, 8.11 mmole), 1.6 M N-BuLi in hexanes (4.3 ml, 6.95 mmole), THF (15 ml).

A solution of phosphonic monomethyl ester (2.317 g, 5.79 mmole) and trimethylsilyldiethylamine (TMSDEA) (1.45 ml, 11.6 mmole) in CHjC^ (15 ml) was stirred at room temperature for 1 hour. The mixture was evaporated to dryness, chased with benzene (20 ml) and dried in vacuo. The residue was taken up in dry CH2C12 (15 ml) treated with (COC1)2 (555 μΐ, 6.37 mmole) and DMF (1 drop), and stirred at room temperature for 1 hour. The mixture was evaporated to dryness, chased with benzene (20 ml) and dried in vacuo.

A -78°C (C02/acetone) solution of the above phosphonochloridate in dry THF (10 ml) was transferred dropwise via cannula over 20 minutes to a -78°C solution of the methyl acetoacetate dianion in dry THF (15 ml). The brown mixture was stirred for 30 minutes at -78°C then quenched by dropwise addition of saturated NH^Cl (10 ml) and allowed to warm to room temperature. The mixture was partitioned between E^Q and EtOAc, the aqueous phase back-extracted with EtOAc, the combined organic phases washed with saturated NaHCO^ and brine then dried over anhydrous Na2S04 and evaporated in vacuo to give 3.080 g of an orange foam. The crude product was purified by flash chromatography on Merck silica gel eluting with (5:3:2) hexane-acetone-toluene.

The product fractions were combined and evaporated to give 1.247 g (43.2%) of the desired title β-ketophosphonate as a pale yellow oil.

TLC (4:4:2) acetone-hexane-toluene, Rf=0.29.

Mass Spec (M+H+=499* observed). 203NMR (CDC13 ) : δ 1.42&1.43 (6Ξ, doublets ) 3\24 (2H, m) 3.27 (1H, septet) 3.63 (2Ξ, m) 3.66&3.67 (3H, 2 doublets, JH_p=11.6 Hz) 3.72 (3H, s) 5.72 (IH, dd, 3^=18.7 Hz, Jgp=24.3 Hz) 7.08-7.30 (9Ξ, m) 7..37 (IH, dd, 3^=18.0 Hz, Jgp-22.7 Hz) ppm13 C NMR (CDCl-): δ21 .-8, 27.1, 46.1 (Jct=84.1 Hz), 50.0, 51.2 (JC-P =5.9 Hz), 52.3, 112.6 (^=135.0 Hz), 114.5 (JCP 23.5 Hz), 116.0, 116.3, 124.9, 125.4, 127.4, 128.8, 132.0, 132 .'l, 139.1, 141.4 (Jcp=5.9 Hz), 142.5, 158.2, 153.1 (Jcp=250.4 Hz), 167.1, 194.9, 195.0 ppm.

E. (E)-4-[[2-[5-(4-Fluorophenyl)-3-(lmethylethyl)-l-phenyl-lH-pyrazol-4-yl J ethenyl ] methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester_ A -15° (salt/ice bath) solution of the Part D ketone (1.304 g, 2.62 mmole) in absolute EtOH (15 ml) was treated with NaBH^ (100 mg, 2.62 mmole) and the- mixture stirred for 15 minutes under argon at -15°C. The reaction was quenched by addition of reagent acetone (0.3 ml) followed by CC-4 silica gel (600 mg), allowed to warm to room temperature, diluted with EtOAc, filtered and evaporated in vacuo to give 1.46 g of a yellow foam. The crude product was purified by flash -204chromatography on Merck silica gel eluting with (85:15) EtOAc-acetone. Product fractions were evaporated to give 388 mg of pure title alcohol as a white foam plus 228 mg of slightly impure product. Total yield was 616 mg (47%). TLC (7:3) EtOAc-acetone, Rf = 0.31.

Mass Spec. (M+H+=501+ observed).

^H NMR (CDC13): δ 1.42 (6H, d) 2.00 (2H, m) 2.60 (2Ξ, d) 3:27 (IH, d) 3.64 3.69 3.93&4.02 4.42 .72 7.04-7.47 (3H, d, J_=ll.l Hz) (3H, s) (IH, 2 doublets) (IH, 2 broad singlets) (IH, dd, ^=18.0 Hz, JH_p23.2Hz) (10H, m) ppm. 13C NMR (CDC13): δ 21.8, 27.1, 35.7 & 36.5 (Jcp=100.3 Hz), 42.0, 42.2, 50.8 (^=5.7 Hz), 51.6, 63.4 (Jcp=20.8 Hz), 114.2 & 114.4 (^=128.7 Hz), 114.6 (J^p=20.8 Hz), 115.9, 116.3, 124.9, 125.4, 127.3, 128.8, 131.9, 132.1, 139.1, 140.1&140.6 (Jcp=5.7 Hz), 142.1, 158.0, 163.0 (Jcp=251.6 Hz), 171.2, 171.9 ppm.

Example 39 (S)-4-[[2-[5-(4-Fluorophenyl)-3-(1-methylethyl)1-phenyl-lH-pyr azol-4-yl ] ethenyl ] hydroxyphosphinyl ] 3-hydroxybutanoic acid, dilithium salt_ A solution of the Example 38 diester (487 mg, 0.973 mmole) in dioxane (10 ml) was treated -205• with 1.0N LiOH (3.4ml, 3.4 mmole) and the resulting mixture was heated and stirred at 70°C for 30 minutes. The mixture was cooled, diluted with H2O, filtered and evaporated in vacuo to an off-white solid. The crude product was dissolved in a minimum amount of H20 and chromatographed on HP-20 resin (15 cm bed, 25 mm diameter column) eluting with H20 followed by (1:1) CH^OH-^O. Product fractions were evaporated in vacuo, dissolved in 75 ml of H20, filtered and lyophilized to give 429 mg (87.3%) of pure title dilithium salt as a fluffy, white lyophilate.

TLC (8:1:1) C^C^-C^OH-HOAc, Rf=0.l4 Anal Calcd for C24H24°5N2?5, Li2 + 1.16 moles H2O (MW 505.233): C; 57.05; H, 5.25; N, 5.55; F, 3.76; P, 6.13 Found: C, 57.05; ^H NMR (400 MHZ, N, 5.18; N, 5.75; F, 3.89; P, 6.47 CD^OD): doublet) δ 1.39 (6H, 20 1.71 (2H, m) 2.35 (2H, m) 3.36 (IH, septet) 4.24 (1Ξ, m) 6.00 (IH, dd, 3^=17.6 Hz, 3^=19.4 Hz) 25 7.07-7.35 (10H, m) Example 40 (E)-4-[[2-[5-(4-Fluorophenyl)-3-(1-methylethyl)-1phenyl-lH-pyrazol-4-yl]ethyl]methoxyphosphinyl]-330 hydroxybutanoic acid, methyl ester__ 206A. (S )-3- [ [ (1,1-Dimethylethyl)diphenylsilyl]oxy]-4-[[2-[5-(4-fluorophenyl)3- (1-methylethyl)-1-phenyl-ΙΗ-pyrazol4- yl ] ethyl ] methoxyphosphinyl ] butanoic acid, methyl ester_ A solution of Example 36 Part H compound (912.0 mg, 1.24 mmole) in dry methanol (50 ml) was treated with 10% Pd/C and hydrogenated at 50 psi on a Parr hydrogenator overnight. The suspension was filtered through Celite and the filtrate was evaporated to dryness and dried in vacuo to give title compound as a homogeneous oil (908.3 mg, 99.1%).

TLC: Rf 0.23 (silica gel; Hexane:Acetone-7:3).

B. (S)-4-[[2-[5-(4-Fluorophenyl)-3-(1methylethyl)-1-phenyl-IB-pyrazol-4-yl ] ethyl ] methoxyphosphinyl ] -3 -hydroxybutanoic acid, methyl ester A solution of Part A compound (908.3 mg, 1.23 mmole) in dry tetrahydrofuran (12 ml) was stirred under argon at room temperature and treated successively with glacial acetic acid (0.29 ml, 4.94 mmoles) and 1.0 M Bu^NF/hexane (3.89 ml, 3.89 mmoles). The reaction mixture was stirred at room temperature for 20 hours, diluted with ice water (25 ml) and extracted with ethyl acetate (3 x 100 ml). The combined organic extracts were washed with saturated NaHCO3 (15 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product mixture (1.0 g) was chromatographed on a silica gel column (LPS-1; 1" -207x 9.5"), eluting the column wtih EtOAc:Hexane mixtures (4:1; 9:1), EtOAc and acetone to give title compound as an oil (529.1 mg, 85.6% yield). TLC: Rf 0.17 (silica gel; EtOAc:hexane-4:1).

Example 41 (S)-4-[[2-[5-(4-Fluorophenyl)-3-(l-methylethyl)-1phenyl-lE-pyrazol-4-yl]ethyl]hydroxyphosphinyl]-3hydroxybutanoic acid, dilithium salt A solution of Example 40 compound (529.0 mg, 1.05 mmoles) in dioxane (12.5 ml) was treated with 1.0 N LiOH (3.7 ml, 3.7 mmoles) and stirred at 55°C (oil bath) under nitrogen for 3.0 hours then at room temperature for 20 hours. The reaction mixture was 'evaporated to dryness and dried in vacuo. The crude product was chromatographed on an HP-20 column (1 x 6"), eluting the column with steam-distilled water (750 ml), 10% agueous CH^OH (500 ml), 20% aqueous CH^OH (500 ml) and 50% aqueous CH^OH (500 ml). The desired fractions were combined, evaporated to dryness and dried in vacuo. The solid obtained was dissolved in steam-distilled water (35 ml) and lyophilized to give title compound as a fluffy white solid (510.0 mg, 92.4%).

TLC: Rf 0.38 (silica gel; i-PrOH:NH4OH: H2O-8:1:1). Anal Calcd for C^H^FLi^OgP^.S (Eff. Mo.

Wt. = 525.899): C, 54.81; H, 5.83; N, 5.33; F, 3.61; P, 5.88 Found: C> 54.81; H, 5.61; N, 5.53; F, 4.06; P, 5.80 IR (KBr) (1596 cm1, C=O of COO).

H1-NMR Spectrum (400 MHz δ 1.36 (d, 6Ξ, J=7) 1.60-1.72 (m, 4Ξ) 2.32 (m, 2H) 2.74 (m, 2H) 3.21 (septet, IH, 4.23 (m, IH) 7.06-7.32 (m, 9H).

Example 42 (S)-4-[[2-[3-(4-Fluorophenyl)-5-(1-methylethyl)-1phenyl-lH-pyrazol-4-yl ] ethynyl ] methoxyphosphinyl ] -3hydroxybutanoic acid, methyl ester_ A. 4-Fluorobenzoic acid, 2-pheny lhydr az ide A mixture of phenylhydrazine (25 ml, 0.25 mmole) and triethylamine (35 ml, 0.25 mmole) in anhydrous ether (500 ml) was cooled down to -5° to -10°C (ice-salt bath) under nitrogen and treated dropwise, over a 30 minute period, with 4-fluorobenzene carbonyl chloride (30 ml, 0.25 mole). The reaction mixture was warmed to room temperature, stirred for 3.0 hours, then filtered, washing the solids well with ether (200 ml). The solids were dissolved in dichioromethane (600 ml), stripped to near dryness, suspended in hexane (600 ml) and filtered. The clear filtrate was evaporated to dryness, triturated with tetrahydrofuran (700 ml) and filtered, washing the solids well with tetrahydrofuran (100 ml). .The filtrate was evaporated to dryness and dried in vacuo to give a crude product (34.6 g) eontamlwith two other components. -209The crude product was recrystallized from acetone to give title compound as white crystals (22.36 g, 38.8%), m.p. 182-184°C.

The filtrate and mother liquor were 5 combined, chromatographed on a silica gel column (Baker, 60-200 mesh, 400 ml), eluting the column with EtOAczCH^Cl^ (1:9) to give an additional 9.78 g of title compound (55.8%).

TLC: Rf 0.63 (silica gel: EtOAc:4).

Anal Calcd for C, 67.81; H, 4.82; N, .12.17, F, 8.25.

Found: C, 67.86; H, 4.88; N, 12.14; F, 8.10 MS (M+H)+=231.

B. 4-Fluoro-N-phenylbenzenecarhohydrazonovl chloride A solution of Part A compound (6.16 g, 26.8 mmole) in anhydrous ether (46 ml) was treated with phosphorus pentachloride (6.6 g, 31.7 mmoles) and the reaction mixture was refluxed under nitrogen for 16.0 hours. The reaction mixture was cooled to room temperature, treated with a solution of phenol (11.5 g, 122.2 mmoles) in ether (15 ml), stirred for 5 minutes then treated dropwise with methanol (11.4 ml). The mixture was concentrated at -^75° in a rotary evaporator and the resulting oil cooled at 5°. The solid obtained was triturated with 5% aqueous acetone (20 ml) and filtered, washing the precipitates well with 5% aqueous acetone (30 ml). The precipitates were dried in vacuo to give title compound as a solid (2.2 g), m.p. 118-120°. -210 The clear filtrate was evaporated to dryness and the product mixture chromatographed twice on a silica gel column (Baker, 60-200 mesh, 400 ml), eluting the column with CH2C12: Hexane mixtures (1:3; 1:1), to give more title compound (total amount = 5.66 g of 85%).

TLC: Rf 0.90 (silica gel; CH2Cl2:Hexane-4:1).

Anal Calcd for C^3H^gFN2Cl:. C, 62.78; H, 4.05; N, 11.27; F, 7.64; Cl, 14.26 Found: C, 62.87; H, 3.97; N, 11.34; F, 7.51; Cl, 13.95 , MS (M+H)*=249.

C. 3-(4-Fluorophenyl)-5-(1-methylethyl)l-phenyl-lH-pyrazole-4-carboxylic acid, ethyl ester_ A solution of sodium ethoxide (from 0.28 g of 12 mmoles of sodium metal and 40 ml of absolute ethanol) is treated dropwise under nitrogen with ethyl isobutyrylacetate (2.0 ml, 12 mmoles), stirred for 15 minutes at room temperature then treated with Fart B compound (3.0 g, 12 mmoles).

The mixture was stirred at room temperature for 4.0 hours, quenched with 10% HCl (10 ml), evaporated to dryness and the resulting solid triturated with ether (3 x 100 ml). The combined organic extracts were washed with brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The crude product (4.3 g) was chromatographed on a silica gel column, eluting the column with CH2C12: hexane (1:1) to give title compound as a reddish-brown syrup (3.27 g, 77.3%).

TLC: Rf 0.42 (silica gel; CE^Cl^hexane-4:1). -211D. 3-(4-Fluorophenyl)-5-(l-methylethyl )-1 phenyl-ΙΗ-pyraz ο1e-4-me thano 1 A solution of Part C compound (3.26 g, 9.25 mmoles) in dry ether (22 ml) was added to a cooled (0°, ice-salt bath) suspension of lithium aluminum hydride (0.71 g, 18.7 mmoles) in dry ether (32 ml) and the reaction mixture was stirred at 0° under nitrogen for 3.0 hours. The mixture was quenched at 0° by the dropwise addition of ethyl acetate (5.0 ml), followed by 10% HCl (11 ml), decanted and the residue triturated with ether (2 x 100 ml). The combined organic extracts were washed with brine (20 ml), dried (anhydrous MgS04), filtered and evaporated to dryness to give title compound (2.87 g, 94.4%). 100 mg of title compound was recrystallized from ether to afford an analytical sample (57 mg, m.p. 145-147°).

TLC: Rf 0.17 (silica gel; CJ^C^:hexane-4:1 ; developed 2X).

Anal Calcd for C^gH^gFN2O: c, N, 73.52; Ξ, 6.17; 9.03; F, 6.12 Found: C, 73.26; H, 6.11; N, 8.96; F/ 6.09 MS (M+H)+=311.

E. 3-(4-Fluorophenyl)-5-(l-methylethyl)l-phenyl-lH-pyrazole-4-carboxaldehyde A solution of Part D compound (2.59 g, 8.34 mmoles) in dry dichloromethane (22.0 ml) was added rapidly to a stirred suspension of pyridinium chlorochromate (5.41 g, 25.1 mmoles) in dry dichioromethane (32 ml) and stirred at room 212temperature under nitrogen for 4.0 hours. The reaction mixture was diluted with ether (190 ml), stirred for 20 minutes then decanted. The tarry residue was triturated with ether (100 ml) and dichioromethane (30 ml) and the combined organic extracts were filtered through a silica gel pad. The clear filtrate was evaporated to dryness and the crude product chromatographed on a silica gel column (Baker, 60-200 mesh, 300 ml) eluting the column with :hexane (4:1) to give title compound (2.40 g, 93.4%) as a solid product. 100 mg of title compound was recrystallized from hexane to give an analytical sample (50 mg, m.p. 103-105°).

TLC: Rf 0.67 (silca gel; CH2Cl2).

Anal Calcd for C^gH^7FN2O: C, 74.01; H, 5.56; N, 9.09; F, 6.16 Found: C, 74.18; H, 5.35; N, 9.11; F, 6.12 MS (M+H)+=309.

F. 4-(2,2-Dibromoethenyl)-3-(4-fluorophenyl )-5-(1-methylethyl)-1-phenyllH-pvrazole A mixture of Part E compound (2.296 g, 7.45 mmoles) and triphenylphosphine (5.86 g, 22.1 mmoles) in dry dichioromethane (35.0 ml) was cooled down to -5° to -10°C (ice-salt bath) under argon, treated dropwise, over a 5 minute period, with a solution of carbon tetrabromide (3.70 g, 11.0 mmoles) in dry dichioromethane (12 ml) and stirred at -10° for 20 minutes. The reaction mixture was warmed up to room temperature, poured into saturated NaHCOg (12 ml) and extracted with -21310 dichloromethane (3 x 60 ml). The combined organic extracts were washed with saturated NaHCO^ (12 ml), brine (10 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness.

The crude product (11.0 g, solid) was chromatographed on a silica gel column, eluting the column with CH2C12:hexane mixtures (1:1, 4:1) to give title compound (2.96 g, 96.0% corrected yield) and unreacted starting material (250.6 mg). 100 mg of title compound was recrystallized from Et2O:hexane to give an analytical sample (36.5 mg, m.p. 93.5°).

TLC: Rf 0.57 (silica gel; CH2C12:hexane-4:1); Anal Calcd for C2QH^7Br2FN2: C, 51.75; H, 3.69; N, 6.04; Br, 34.43; F, 4.09 Found: C, 51.78; H, 3.54; N, 6.07; Br, 34.40; F, 3.92 MS (M+H)*=465 G. 4-Ethyny1-3-(4-fluorophenyl)-5-(1methylethyl)-l-phenvl-ΙΗ-pyrazole A solution of Part F compound (2.87 g, 6.18 mmoles) in dry tetrahydrofuran (11.44 ml) was cooled down to -78° (dry ice-acetone), treated dropwise with 1.6 M n-BuLi/hexane (11.7 ml, 18.6 nmoles) under argon then stirred at -78° for 2 hours and 20 mi nutes. The reaction mixture was quenched at -78° with 25% NH4C1 (16.5 ml), warmed up to room temperature and extracted with ether (3 x 60 ml). The combined organic extracts were washed with brine (22 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The -214crude product (1.9 g) was chromatographed on a silica gel column, eluting the column with Et2O:hexane (5:95). The desired fractions were combined and evaporated to dryness to give title compound (1.88 g, 100% yield) as a solid product. 100 mg of title compound was recrystallized from hexane to give an analytical sample (63.5 mg, m.p. 117-118°).

TLC: Rf 0.37 (silica gel; Et20:hexane-1: 9).

Anal Calcd for C--H--FN-: C, 78.92; H, 5.63; F, 6.24; N, 9.21 Found: C, 79.12; H, 5.60; F, 6.02; N, 9.12 MS (M+H)+=305.

H. (S )-3-[ [(1,1-Dimethylethyl)diphenylsilyl] oxy]-4-[ [ [3-(4-fluorophenyl )-5(l-methylethyl) -l-phenyl-lH-pyrazol-4yl ] ethynyl ] methoxyphosphinyl ] butanoic acid, methyl ester_ A solution of (S )-3-[[ (1,1-dimethylethyl )' diphenylsilyl ] oxy] -4- (hydroxymethoxyphosphinyl) butanoic acid, methyl ester .(prepared in Example 1 Part F) (2.77 g, 5.55 mmoles) in dry di chi or ome thane (10 ml) was treated with trimethylsilyldiethylamine (2.1 ml) and stirred at room temperature for 1.0 hour under argon. The reaction mixture was evaporated to dryness, azeotroped with dry benzene (20 ml) and dried in vacuo. The syrup was re-dissolved in dry dichloromethane (10 ml), cooled down to -10° (ice-salt bath), treated with 1 drop of DMF followed by the dropwise addition of oxalyl chloride (530 μΐ), stirred at -10° for 15 minutes -215then at room temperature for 1.0 hours. The mixture was evaporated to dryness, azeotroped with benzene (20 ml) and dried in vacuo.

Part G compound (1.12 g, 3.67 mmoles), was dissolved in dry tetrahydrofuran (9.0 ml), cooled down to -78° (dry ice-acetone bath), treated with 1.6 M n-BuLi/hexane (2.3 ml, 3.68 mmoles) under argon and stirred at -78° for 45 minutes. The above phosphonochloridate was dissolved in dry tetrahydrofuran (6.5 ml), cooled to -78° and treated dropwise, by cannula, with the solution of the acetylene anion both solutions being kept at -78° throughout the addition. The reaction mixture was stirred at -78° for 30 minutes then guenched by .the dropwise addition of 25% NH^Cl (6.0 ml) and allowed to warm up to room temperature. The mixture was extracted with ether (3 x 100 ml) and the combined organic extracts were washed with 25% NH4C1 (10 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product mixture (4.0 g) was chromatographed on a silica gel column, eluting the column with acetone:hexane mixtures (1:9; 3:7) to give title compound (1.76 g, 65.2%) as an oil. TLC: Rf 0.40 (silica gel; hexane:acetone-7:3).

I. (S)-4-[[2-[3-(4-Fluorophenyl)-5-(lmethylethyl)-1-phenyl-ΙΗ-pyrazol-4-yl] . ethynyl ] methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester -216A solution of Part H compound (700 mg, 0.95 mmoles) in dry tetrahydrofuran (9 ml) was treated successively with glacial HOAc (224 μΐ, 3.82 mmoles) and 1.0 M (C^HgJ^NF (3.0 ml, 3.0 mmoles) and stirred overnight at room temperature under argon. The solution was cooled down to 0° (ice-salt bath), treated dropwise with 5% KHS04 (10 ml) and extracted with ethyl acetate (3 x 75 ml). The combined organic extracts were washed with 5% KHS04 (10 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product (890 mg) was dissolved in a mixture of ether (16 ml) and tetrahydrofuran (12 ml), cooled down to 0° (ice-salt bath) and treated with excess diazomethane in ether. The reaction mixture was stirred at 0° for ^-3 hours, quenched by the dropwise addition of glacial acetic acid and evaporated to dryness. The crude product mixture (764 mg) was chromatographed on a silica gel column, eluting the column' with EtOAc:hexane mixtures (1:1; 4:1; 9:1) to give title compound as a semi-solid (347 mg, 73.2%).

TLC: Rf 0.28 (silica gel; EtOAc:hexane-4:1).

Example 43 (S)-4-[[2-[3-(4-Fluorophenyl)-5-(1-methylethyl)-1phenyl-lH-pyrazol-4-yl] ethynyl ] hydroxyphosphinyl ] -3hydroxybutanoic acid, dilithium salt _ A solution of Example 42 compound (347 mg, 0.7 mmoles) in dioxane (8.3 ml) was treated with 1.0 N LiOH (2.4 ml, 2.4 mmoles) and stirred at 55°C (oil bath) under nitrogen for 45 minutes. 217The reaction mixture was evaporated to dryness and dried in vacuo. The resulting semi-solid was chromatographed on an HP-20 column (1" x 3), eluting the column with steam-distilled water (350 ml), 50% aqueous methanol (250 ml). The desired fractions were combined, evaporated to dryness and dried in vacuo. The product was dissolved in steam-distilled water and lyophilized to give title compound as a white solid lyophilate (338 mg, 97.5%).

TLC: Rf 0.50 (silica gel; i-PrOH:NH4OE:H20-7:2:1). Anal Calcd for C^H^FLi^OgP· 1.95 HjO: C, 55.71; H, 5.04; N, Found: C, 55 .90; Ξ, 5.46; Spectrum (400 MHz, δ 1.45 (d, 6H, J=7) 1.89- -2.05 (m, 2Ξ) 2.38 (dd, IH, J=9, 2.52 (dd, IH, J=4, 3.06 (septet, IH, 4.48 (m, IH) 7.16- -8.11 (m, 9H) .42; F, 3.67; P, 5.99 N, 5.30; F, 3.95; P, 5.96 CD3OD): ) ) -7) Example 44 (S)-4-[[2-[3-(4-Fluorophenyl)-5-(l-methylethyl)l-phenyl-lH-pyrazol-4-yl]ethyl]methoxyphosphinyl]3-hydroxybutanoic acid, methyl ester_ A. (S) -3-[[(1,1-Dimethylethyl)diphenylsilyl ] oxy]-4-[[2-[3-(4-fluorophenyl)5- (l-methylethyl) -1-phenyl-lH-pyrazole4-yl ] ethyl ] methoxyphosphinyl ] butanoic acid, methyl ester -218A solution of Example 42 Part I compound (1.0 gm, 1.36 mmole) in dry methanol (72 ml) was treated with 10% Pd/C (250 mg) and hydrogenated in a Parr hydrogenator · overnight at *40 psi. The reaction mixture was filtered through Celite and the clear filtrate was evaporated to dryness to give title compound as a homogeneous oil (1.0 gm, 100% crude yield).

TLC: Rf 0.27 (silica gel; hexane:acetone - 7:3).

B. (S)-4- [ [2-[3-(4-Fluorophenyl )-5-(.1me thy 1 ethy 1) -1 -phenyl - ΙΗ-pyraz ο 1 -4-y 1 ] ethyl ] methoxyphosphinyl ] -3 - hydroxybutanoic acid, methyl ester_ A solution of Part A compound (1.05 g, 1.41 mmoles) in dry tetrahydrofuran (14.0 ml) was treated successively with glacial acetic acid (334 μΐ, 5.83 mmoles) and 1.0 M (C4Hg )4NF/THF (4.46 ml, 4.46 mmoles) and stirred at room temperature under argon for *19 hours. The reaction mixture was diluted with ice-water (28 ml) and extracted with ethyl acetate (3 x 100· ml). The combined organic extracts were washed with saturated NaHCO3 (15 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The crude product mixture (1.14 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 150 ml), eluting the column with EtOAc:hexane mixtures (2:1; 4:1, 9:1), ethyl acetate and acetone to give title compound as a semi-solid (623.5 mg, 88.0%). TLC: Rf 0.18 (silica gel; EtOAc .-hexane -4:1). s -219Example 45 (S)-4-[[2-(3-(4-Fluorophenyl)-5-(1-methylethyl)-1phenyl-lH-pyrazol-4-yl]ethyl]hydroxyphosphinyl]-3hydroxvbutanoic acid, dilithium salt_ A solution of Example 44 compound (623.5 mg, 1.24 mmoles) in dioxane (14.7 ml) was treated with 1.0 N LiOH (4.28 ml, 4.27 mmoles) under nitrogen, heated at 55°C (oil hath) for 2 hours then stirred at room temperature for ~20 hours.

The reaction mixture was evaporated to dryness, dried in vacuo and chromatographed on an HP-20 column (1" x 6"), eluting the column with steam-distilled water (750 ml), 10% aqueous CH^OH, 20% aqueous CH^OH (500 ml) and 50% aqueous CH^OH (500 ml). The desired fractions were combined and evaporated to dryness to give the desired product (560 mg, 92.8%). TLC: Rf 0.42 (silica gel; i-PrOH:NH4OH:H2O - 8:1:1).

Anal Calcd for C24H26FLi2N2O5P-1.16 H2O: (Eff. M.W. = 507.197): C, 56.83; H, 5.62; N, 5.52; F, 3.74; P, 6.11 Found: C, 56.83 ; H, 5.80; N, 5.76; F, 3.46; P, H2-NMR Spectrum (400 MHz, CD^OD): δ 1.30 (d, 6H, J=7) 1.60-1.78 (d, 4Ξ) 2.36 (m, 2Ξ) 2.96-2.99 (m, 2H) 3.14 (m, IH) 4.26 (m, IH) 7.14-7.68 (m, 9H) -220Example 46 (S)-4-[ [ [4-(4-Fluorophenyl )-1-(1-methylethyl )-3phenyl-lH-pyrazol-5-yl ] ethynyl ] methoxyphosphinyl ] 3-hydroxybutanoic acid, methyl ester_ A. 2-(4-Fluorophenyl)-1-phenylethanone A suspension of magnesium turnings (928 mg, 38 mmoles) in dry ether (38 ml) under argon was treated dropwise with 4-fluorobenzylhromide (5.3 ml, 42 mmoles) over a period of 45 minutes at a rate maintaining gentle reflux. When addition was completed, the mixture was refluxed for another 30 minutes, cooled down to room temperature and treated with a solution of benzonitrile (2.96 ml, 29 mmoles) in dry ether (5 ml). The mixture was stirred at room temperature for 4.5 hours, poured slowly into cold 10% HCI (40 ml) and the resulting suspension was extracted with ether (5 x 50 ml) and ethyl acetate (2 x 100 ml). The combined organic extracts were washed with saturated NaHCO^ (50 ml), brine (50 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product (9.8 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 400 ml), eluting the column with CH2C12:hexane mixtures (1:4, 1:2). The desired fractions were combined and evaporated to dryness to give title compound as a white 'solid (3.29 g, m.p. 106-8°). (An additional 2.60 g was obtained from other fractions containing a trace of starting material to give a total yield of 94.8%.) TLC: Rf 0.60 (silica gel; CH2C12 :hexane - 1:1). rf -221Anal Calcd for C^4Hg,^FO: C' 78*49' H' 5.18; F, 8.87 Found; C, 78.22; H, 5.22; F, 9.21 MS (M+H)+=215 B. 2-(4-Fluorophenyl)-l-phenylethanone, (1-methylethyl)hydrazone_ A solution of Part A compound (4.45 g, 21 mmoles) in a mixture of 95% ethanol (34 ml) and glacial acetic acid (0.74 ml) was treated with is opropy lhydraz ine (3.63 ml, ~42 mmoles) and heated at 80°(oil bath) under N2 for 1.4 hours.

Thin layer chromatography indicated that some starting material was still present so the reaction mixture was treated with additional is opr opy lhydraz ine (2.0 ml, ~23 mmoles) and heated at 80° (oil bath) for another hour. The reaction mixture was cooled down to room temperature, evaporated in a rotary evaporator to remove most of the solvent then diluted with dichloromethane (200 ml). The organic solution was washed with brine (25 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness. The yellow oil obtained was evaporated once from toluene (150 ml) to give title compound as a crude product (5.63 g) contaminated with some starting material and traces of two other components.

TLC: Rf 0.28 (silica gel; CH2C12:hexane-1:1).

IsopropyIhydrazine was prepared as follows: Iodopropane (10.3 ml, 0.10 mole) was added over a period of 2.0 hours to hydrazine hydrate (48.4 ml, 1.0 mole) under N2- The mixture was then stirred at 60° (oil bath) under N2 for 3 hours, cooled and extracted with ether (250 ml) -222 for 20 hours (liquid-liquid extractor). The ethereal extract was evaporated to give isopropylhydrazine (5.63 ml or 5.3 g).

C. Acetic acid, 2-[2-(4-fluorophenyl)-1phenylethylidene]-1-(l-methylethyl)hydrazide_ A mixture of crude Part B compound (5.63 g, =21 mmoles) and triethylamine (5.85 ml, 42 mmoles) in dry toluene (210 ml) was cooled down to 0° (ice-salt bath) under N2 and treated with acetyl chloride (1.86 ml, 26.3 mmoles). The reaction mixture was stirred with gradual warming to room temperature for 1.5 hours, diluted with ether (700 ml) and filtered. The clear filtrate was dried (anhydrous Na2SO4), filtered’, evaporated to dryness and evaporated once from toluene (300 ml). The -solid obtained (7.1 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 400 ml), eluting the column with CE2C12:hexane mixtures (1:1, 2:1), CH2C12 and CH^l^CH^OH (9:1) to give title compound as a crude product (4.11 g). The crude product was rechromatographed on another silica gel column, eluting the column with EtOAc:hexane (4:1). The desired fractions were combined and evaporated to dryness, to give title compound as a thick yellow oil (3.89 g).

TLC:Rf 0.47 (silica gel:EtOAc:hexane-1:1). -223D. 4-(4-Fluorophenyl )-5-methyl-l-( 1-methylethvl)-3-phenyl-ΙΗ-pyrazole A solution of Part C compound (1.50 g, 4.80 mmoles) in bis (2-methoxyethyl)ether (48 ml) was treated with solid potassium hydroxide (615 mg, .96 mmoles) and heated at 80° (oil bath) under N2 for 2.0 hours. The reaction mixture was treated with a second batch of potassium hydroxide (700 mg, 12.5 mmoles), heated at 80° for 2 hours and then stirred at room temperature for 16 hours. The mixture was poured into water (300 ml) and extracted successively with ether (3 x 150 ml) and ethyl acetate (200 ml). The organic solutions were combined, washed with cold 3% HCl (500 ml), brine (2 x 100 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness. The crude product (3.5 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 500 ml), eluting the column with EtOAc:hexane (1:4) to give title compound as a cream-colored solid (1.33 g, 94.3%), m.p. 135-7°.

TLC: Rf 0.63 (silica gel; EtOAc:hexane - 1:4).

E. 4-(4-Fluorophenyl)-1-(1-methylethyl)25 3-phenyl-lH-pyrazole-5-carboxaldehvde A mixture of CuSO4*5H2O (2.21 g, 8.85 mmoles) and potassium persulfate (9.53 g, 35.3 mmoles) in acetonitrile (65 ml) and water (39 ml) was heated to 65° (oil bath) under N2 and treated with Part D compound (2.6 g, 8.83 mmoles). The bath temperature was slowly raised to 75°, kept at 75°' for 40 minutes then cooled to room temperature, using a water bath. The reaction mixture was -224diluted with dichioromethane (45 ml), stirred for 10 minutes and decanted, extracting the aqueous suspension with more dichioromethane (3 x 45 ml). The combined organic extracts were washed with brine (2 x 30 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness. The crude product (2.75 g) was chromatographed on a silica gel column (LPS-1), eluting the column with EtOAc:hexane (1:9) to give title compound as a solid (1.57 g, 57.7%).

TLC: Rf 0.72 (silica gel; EtOAc;hexane - 1:4).

F. 5-(2,2-Dibromoethenyl)-4-(4-fluorophenyl )-1-( 1-methylethyl ) -3-phenyl15 lH-pyrazole_ ' A mixture of Part E compound (1.75 g, 5.68 mmoles) and triphenylphosphine (4.6 g, 16.8 mmoles) in dry dichioromethane (27.0 ml) was cooled down to -5° to -10° (ice-salt bath) under argon, treated dropwise, over a 5 minute period with a solution of carbon tetrabromide (2.82 g, 8.42 mmoles) in dry dichioromethane (9 ml) and stirred at -10° for 20 minutes. The reaction mixture was warmed up to room temperature, poured onto saturated NaHCO3 (9.0 ml) and extracted with dichioromethane (3 x 50 ml). The combined organic extracts were washed with saturated NaHCO3 (10 ml), brine (10 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness.

The crude product was chromatographed on silica gel eluting with cyclohexane mixtures -225(1:0, 1:4). The desired fractions were combined to give title compound (2.35 g, 91.4%) as an oil. TLC:Rf 0.32 (silica gel:CH2C12:hexane - 1:1).

G. 5-Ethynyl-4-(4-fluorophenyl)-1-(1methylethyl)-3-phenyl-lB-pyrazole A solution of Part F compound (1.89 g, 4.08 mmoles) in dry tetrahydro fur an (7.6 ml) was cooled down to -78° (dry ice-acetone), treated dropwise with 1.6 M BuLi/hexane (5.2 ml, 8.18 mmoles, 2 eg.) under argon and stirred at -78° for 1 hour and 20 minutes. The reaction mixture was quenched at -78° with 25% NH4Cl (11.0 ml), warmed up to room temperature and extracted with di chi or ome thane (3 x 50 ml). The combined organic extracts were washed with brine (15 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The crude product (1.77 g) was chromatographed on a silica gel column, eluting the column with CH2C12:hexane mixtures (1:4; 1:1) to give title compound (648 mg) along with mixed fractions containing title compound and Part F compound.

The mixed fractions were combined with the product from another run (490 mg from 1.1 mmoles of Part F compound) and chromatographed on a second column, eluting the column with cyclohexane (1:9). The desired fractions were combined and evaporated to dryness to give title compound as an oil (1.02 g, 71.5% corrected for recovered starting material). -226H. (s )-3-[[(1,1-Dimethylethyl)diphenylsilyl] oxy]-4-[ [ [4-(4-fluorophenyl)-1(1-methylethyl)-3-phenyl-lE-pyrazol-5yl ] ethynyl ] methoxyphosphinyl ] butanoic acid, methyl ester A solution of the Example 1 Part F. phosphonic monomethyl ester (2.341 g, 5.01 mmoles) and trimethylsilylethylamine (1.90 ml, 10 mmoles) in dry dichloromethane (9.5 ml) was stirred at room temperature under argon for 1 hour. The mixture was evaporated to dryness, azeotroped with dry benzene (15 ml) and dried in vacuo. The viscous oil was re-dissolved in dry dichloromethane (9.5 ml), treated with one drop of DMF, cooled down to -10 to 0° (ice-salt bath) and treated dropwise with oxalyl chloride (480 μΐ, .47 mmoles). Vigorous gas evolution was observed and the dark yellow solution was stirred at -10° to 0° for 15 minutes then at room temperature for 1.0 hour. The reaction mixture was evaporated to dryness, azeotroped with benzene (18 ml) and dried in vacuo.

A solution of Part G compound (1.016 g, 3.34 mmoles) in dry tetrahydrofuran (8 ml) was cooled down to -78® (dry ice-acetone) under argon and treated with 1.6 M n-BuLi/hexane (2.1 ml, 3.36 mmoles) and stirred at -78° for 1.0 hour. The above phosphonochloridate was dissolved in dry tetrahydrofuran (8 ml), cooled down to -78® (dry ice-acetone) under argon and treated dropwise by cannula with the solution of the acetylene anion both solutions being kept at -78® throughout the addition. The reaction mixture was stirred at -227-78° for 1.0 hour, quenched by the dropwise addition of 25% Nycl (9 ml) then warmed up to room temperature. The mixture was extracted with ether (3 x 100 ml) and the combined organic extracts were washed with 25% NH^Cl (10 ml), brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product was chromatographed on a silica gel column, eluting the column with acetone:hexane mixtures (1:9, 1:4) to give title compound as an oil (1.595 g, 64.8%).

TLC: Rf 0.43 (silica gel; acetone:hexane - 3:7).

I. (S)-4-[[[4-(4-Fluorophenyl)-1-(115 methylethyl )-3-phenyl-lH-pyrazol-5-yl] ethynyl]methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester_ A solution of Part H compound (1.0 g, 1.36 mmoles) in dry tetrahydrofuran (13 ml) was treated successively with glacial acetic acid (320 μΐ, 5.46 nmoles) and 1 M (C4Hg)4NF (4.26 ml, 4.26 nmoles) and stirred overnight at room temperature under argon. The reaction mixture was cooled down to 0° (ice-salt bath), treated with 5% KSS04 (15 ml) and extracted with ethyl acetate (3 x 125 ml). The combined organic extracts were washed with 5% KHS04 (2 x 25 ml), brine (25 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness.

The crude product (1.06 g) was dissolved in a mixture of ether (23 ml) and tetrahydrofuran (18 ml), cooled down to 0° (ice-salt bath), treated with excess diazomethane in ether and -228stirred at 0° for 4 hours. The reaction mixture was quenched by the dropwise addition of glacial acetic acid, evaporated to dryness and dried in vacuo. The crude product was chromato err aphed on a silica gel column, eluting the column with acetone:hexane (1:2). The desired fractions were combined and evaporated to dryness to give title compound as an oil (330 mg, 48.7%).

TLC: Rf 0.23 (silica gel; EtOAc:hexane - 4:1).

Example 47 (S)-4-[[[4-(4-Fluorophenyl)-1-(l-methylethyl)-3phenyl-iH-pyrazol-5-yl]ethynyl]hydroxyphosphinyl]3-hydroxybutanoic acid, dilithium salt A solution of Example 46 compound (330 mg, 0.66 mmole) in dioxane (7.8 ml) was treated with IN LiOH (2.29 ml, 2.29 mmole) stirred at 55° (oil bath) under argon for 1.5 hours then at room temperature for 16 hours. The reaction mixture was evaporated to dryness and dried in vacuo. The crude product was chromatographed on an HP-20 column (1" x 10"), eluting the column with steamdistilled water (750 ml), 10% aqueous cyOH (500 ml), 20% aqueous CH3OH (500 ml) and 50% aqueous cyOH (500 ml). The desired fractions were combined, evaporated to dryness and dried in vacuo. The solid product was dissolved in steam-distilled water and lyophilized to give title compound as a fluffy solid lyophilate (275 mg, 99.5%).

TLC: Rf 0.57 (silica gel; i-PrOH;NH40H:H20 8:1:1). -229Anal Calcd for C^H^FU^NzOgP·2.28 (Eff. mol. wt = 523.310): C, 55.08; H, 5.11; N, 5.35; F, 3.63; P, 5.92 Found: C, 55.08; H, 4.98; N, 5.47; F, 3.66; P, 5.99 5 IR (KBr): 2172 cm1 (CsC) H2-NMR spectrum (400 MHz, CD^OD): δ 1.57 (d, 6H, J=7 Hz) 1.86-2.01 (m, 2H) 2.37 (dd, IH, J=8) 2.50 (dd, IH, J=4) 4.40 (m, IH) 5.01 (septet, IH, J=7) 7.04-7.39 (m, 9H) Example 48 (S)-4-[[2-[4-(4-Fluorophenyl)-l-(l-methylethyl)-3phenyl-lE-pyrazol-5-yl ] ethyl]methoxyphosphinyl] -3hydroxybutanoic acid, methyl ester_ A. (S)-3-[[(1,1-Dimethylethyl)diphenylsilyl ]oxy]-4-[[2-[4-(4-fluorophenyl)-1(1-methylethyl)-3-phenyl-IH-pyrazol-5yl]ethyl]methoxyphosphinyl]butanoic acid, methyl ester_ A solution of Example 46, Part H compound (608 mg, 0.85 mmole) in dry methanol (63 ml) was treated with 10% Pd/C (155 mg) and hydrogenated at room temperature on a Parr hydrogenator at ^40 psi overnight. The suspension was diluted with methanol (50 ml) and filtered through a celite pad in a millipore unit, washing the pad well with methanol. The clear filtrate was evaporated to dryness and dried in vacuo to give title compound -230as a homogeneous oil (559 mg, 90.9%) with consistent H^-NMR and C13-NMR spectral data.

RC: Rf 0.20 (silica gel:acetone: hexane 3:7; UV).

B. (S) -4-[[2-[4-(4-Fluorophenyl)-1-(1• methylethyl)-3-phenyl-lH-pyrazol-5-yl]ethyl ] methoxyphosphinyl] -3-hydr oxybutanoic acid,methyl ester_ A solution of Part A compound (559 mg, 0.75 mmole) in dry tetrahydrofuran (7.5 ml) was-treated successively with glacial acetic acid (176 μΐ, 3.0 mmoles, 4 eq) and 1.0 M (C4Hg)4 NF/hexane (2.34 ml, 2.34 mmoles, 3.1 eq) under nitrogen and stirred at room temperature for *20 hours. The reaction mixture was diluted with ice-water (20 ml), extracted with ethyl acetate (3 x 70 ml), and the combined organic extracts were washed with saturated NaHCO3 (10 ml), brine (20 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The crude product (580 mg) was chromatographed on a silica gel column, eluting the column with EtOAc:hexane (1:4), EtOAc and acetone:hexane (4:1). The desired fractions were combined, evaporated to dryness and dried in vacuo to give title compound as a homogeneous oil (337 mg, 89.4%).

TLC: Rf 0.18 (silica gel; acetone:hexane -1:1; UV). -231Example 49 (S )-4- [ [2- [4-(4-Fluorophenyl)-l-(l-methylethyl)-3phenyl-lH-pyrazol-5-yl ] ethyl ] hydroxyphosphinyl ]-3hydroxybutanoic acid, dilithium salt_ A solution of Example 48 compound (337.0 mg, 0.67 mmole) in dioxane (8.0 ml) was treated with 1.0 N LiOH (2.32 ml, 3.5 eq) under argon, stirred at 55° (oil bath) for 3.0 hours then at room temperature for 20 hours. The reaction mixture was evaporated to dryness and dried in vacuo (pump) for 1.0 hour. The crude product was chromatographed on an HP-20 column (l"x8), eluting the rn)nmn with steam-distilled water (500 ml), 10% aqueous cyOH (500 ml), 20% aqueous CyOH (500 ml) and 50% aqueous CyOH. The desired fractions were combined, evaporated to dryness and dried in vacuo. The resulting solid was dissolved in steam-distilled water, frozen and lyophilized overnight to give title compound as a fluffy white lyophilate (280.4 mg, 82.4%) with consistent analytical, mass spectrum, IR and H1-NMR spectral data.

TLC: Rf 0.45 (silica gel; i-PrOH: NH^OH: yo 8:1:1; UV). An additional 24 mg of slightly impure product was obtained from other fractions.

Anal Calcd for C24H26FLl2N205P*1,19 H2° (Effective mol weight) = 507.733: C, 56.77; H, 5.63; N, 5.51; F, 3.74; P, 6.10 Found: C, 52.77; H, 5.69; N, 5.49; F, 3.91; P-, 6.50 IR (KBr) #69377 (1589 CM"1, C=O of COO") -232H^-NMR Spectrum (400 MHz, CD^OD): δ 1.55 (d,. 6H, J=7, Hj ) 1.64-1.84 (m, 4H, -, Hc + Hd) 2.34 (m, 2H, -, Ha) a 2.91 (pseudo quartet, 2H, -, Hfi) 4.25 (m, IH, -, Ηθ) 4.77 (septet, IH, partially buried under HOD signal, -, y) 7.05-7.32 (m, 9H, aromatic protons) Example 50 (S)-4- [ [ [1- (4-Fluorophenyl) -4- (1-methylethyl)-2phenyl-lH-imidazol-5-yl ] ethynyl ] methoxyphosphinyl ] 3-hydroxybutanoic acid, methyl ester A. N-Benzovlvaline A solution of valine (20 g, 0.17 mole) in tetrahydrofuran (20 ml) and 2 N NaOH (111 ml) was cooled down to 10° (ice-water bath) under nitrogen and treated dropwise with benzoyl chloride (23.8 ml, 0.21 mole). The reaction mixture was warmed up to room temperature, stirred for 3.0 hours then cooled back down to 0° (ice-salt bath) and treated with concentrated sulfuric acid (8.0 ml). The mixture was extracted with ethyl acetate (3 x 200 ml). The combined organic extracts were washed with water (100 ml), brine (50 ml), dried (anhydrous MgS04), filtered and evaporated to dryness to give title compound as a solid (41.97 g, 100% crude yield).

A small amount (260 mg) of the product was recrystallized from ethyl acetate and petroleum ether to give title compound as an analytical sample (205 mg, m.p. 132-3°). -233TLC: Rf 0.10 (silica gel; acetone:hexane - 1:1). Anal Calcd: C, 65.14; N, 6.83? N, 6.33· Found: C, 64.81; N, 6.79; N, 6.29 MS (M+H)*=222 B. N-(l-Acetyl-2-methylpropy1)benzamide A mixture of Part A compound (41.7 g, =0.17 mole) and triethylamine (47.3 ml, 0.34 mole) in acetic anhydride (48 ml) was treated with two portions of A-d-i methyl aminopyridine (2.07 g, 0.017 mole) and stirred at room temperature for 16 hours under nitrogen. The reaction mixture was cooled down to 0° (ice-salt bath), quenched with methanol and stirred for 30 minutes. The light brown precipitates that formed were filtered off, washed well with water (1.1 1.) and re-dissolved in dichloromethane (750 ml). The solution obtained was dried (anhydrous MgS04), filtered and evaporated to dryness to give a crude product (35.9 g).

The crude product was dissolved in ether (1.3 1.), filtered to remove the insoluble solids and the clear filtrate was concentrated down to a volume of ~300 ml and cooled in an ice-bath.

Title compound in the form of a cream colored precipitate (21.35 g, m.p. 88-90°) was filtered off. Purification of the solid obtained by evaporation of the filtrate on a silica gel column (Baker, 600-200 mesh, 600 ml), eluting the column with EtOAc:hexane mixtures (1:7, 1:4) gave an additional 4.77 g of title compound. A small amount of title compound was recrystallized from ether, m.p. 88-89°C. -234TLC: Rf 0.75 (silica gel; acetone:hexane - 1:1). Anal Calcd: C, 70.20,; H, 7.81; N, 6.39 Found: C, 70.79; H, 7.68; N, 6.31 MS (M+H)+=220.

C. N-[1-[1-[(4-Fluorophenyl)imino]ethyl]2-methylpropyl]benzamide A solution of Part B compound (25.0 g, 0.114 mole) in dry toluene (250 ml) was treated with 4-fluoroaniline (12 ml, 0.127 mole, 1.11 eq.) and p-toluenesulfonic acid hydrate (125 mg) and the reaction mixture was refluxed under y with a Dean-Starke distilling receiver for 20 hours. The reddish-brown solution was cooled down to -10°C (ice-salt bath) and used as is for the next step in the sequence.

D. 1-(4-Fluorophenyl)-5-methyl-4-(1methylethyl)-2-phenyl-lH-imidazole The cooled solution of Part C compound (=0.114 mole) was diluted at -10° (ice-salt bath) with dry dichioromethane (200 ml) and treated portionwise with phosphorus pentachloride (47.5g, 0.228 mole). The cream-colored slurry was warmed up, refluxed for 2.5 hours under y, cooled down to room temperature and poured slowly into a mixture of ice (400 g) and 50% NaOH (105 ml). The organic phase was separated and the aqueous phase extracted with dichioromethane (2 x 200 ml). The combined organic extracts were washed with brine (2 x 100 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. -235The crude product mixture (35.0 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 600 ml), eluting with EtOAc:hexane mixtures (1:9, 1:4) to give title compound as white needles (29.24 g, m.p. 146-8°, 87%).

TLC: Rf 0.40 (silica gel; EtOAc:hexane - 1:4) Anal Calcd: C, 77.52; H, 6.51; N, 9.52; F, 6.45 Found: C, 77.48; H, 6.69; N, 9.40, F, 6.45 MS (M+H)+ = 295 E. 1-(4-Fluorophenyl)-4-(1-methylethyl)2-phenyl-lH-imidazole-5-carboxaldehyde A mixture of cupric sulfate hydrate (8.50 g, 34.0 mmoles) and potassium persulfate (36.8 g, 15 0.136 mole) in a solvent mixture of acetonitrile (250 ml) and water (150 ml) was heated to 65° (oil bath) under N2 and treated with Part D compouund (10 g, 34.0 mmoles). The reaction mixture was slowly heated up to 75°, kept there for 40 minutes 20 then cooled to room temperature. The solution was decanted from the solids, extracting both aqueous phase and solid with dichloromethane (3 x 200 ml). The combined organic extracts were washed with brine (2 x 100 ml), dried (anhydrous MgSO^), 25 filtered and evaporated to dryness. The crude product (17.0 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 600 ml) eluting the column with EtOAc:hexane mixtures (5:95, 1:7) to give title compound as a solid (6.27 g, 59.8%). 200 mg of title compound was recrystallized from Et^O: hexane to give an analytical sample (76 mg, m.p. 160-1°). -236TLC: Rf 0.34 (silica gel; EtOAc:hexane -1:4). Anal Calcd: C, 74.01; H, 5.56; N, 9.09; F, 6.16 Found: C, 73.98; H, 5.68; N, 9.04; F, 6.09 MS (M+N+)=309 F. 5-(2,2-Dibromoethenyl) -1- (4- fluorophenyl )-4- (l-methylethyl )-2-phenyl IH-imidazole A solution of Part E compound (1.75 g, 5.68 mmoles) and triphenylphosphine (4.46 g, 16.8 mmoles) in dry dichloromethane (27.0 ml) was cooled down to -5° to -10° (ice-salt bath) under argon and treated dropwise over a period of 5 minutes with a solution of carbon tetrabromide (2.82 g, 8.42 mmoles) in dry dichloromethane (9 ml). The mixture was stirred at -10° for 20 minutes then poured onto saturated sodium bicarbonate (9.0 ml) and extracted with dichloromethane (3 x 50 ml). The combined organic extracts were washed with saturated NaHCO3 (10 ml), brine (10 ml), dried (anhydrous MgSO4), filtered and evaporated to dryness. The crude product (8.07 g) was chromatographed on a silica gel column, eluting the column with cycy:hexane mixtures (1:7; 1:4) to give title compound as a solid (2.35 g, 91.4%). 1Q0 mg of Part F compound was recrystallized from EyO: hexane to give an analytical sample (49 mg, m.p. 164-5°).

TLC: Rf0.32 (silica gel; cycy:hexane - 1:1). · Anal Calcd: C, 51.75; H, 3.69: N, 6.04; F, 4.09; Br, 34.43 Found: C, 51.80; H, 3.71; N, 6.02; F, 4.08; -237Br, 34.25 MS (M+H)+ = .465.

G. 5-Ethynyl-1-(4-fluorophenyl)-4-(15 methylethyl )-2-phenyl-LH- imidazole A solution of Part F compound (3.065 g, 6.60 mmoles) in dry tetrahydrofuran (12.5 ml) was cooled down to -78° (dry ice-acetone) and treated with 1.6 M n-BuLi/hexane (8.4 ml, 13.4 mmoles) under argon. The reaction mixture was stirred at -78° for 1 hour and 20 minutes, quenched by the dropwise addition of 25% NH^Cl (18 ml), warmed up to room temperature and extracted with ether (3 x 100 ml). The combined organic extracts were washed with brine (25 ml), dried (anhydrous MgS04), filtered and evaporated to dryness. The crude product (2.08 g) was chromatographed on a silica gel column (Baker, 60-200 mesh, 400' ml), eluting the column with EtOAc:hexane mixtures (1:9, 1:4).

The desired fractions were combined and evaporated to dryness to give title compound as a solid (1.97 g, 97.8%). mg of Part G compound was recrystallized from hexane to give an analytical sample (59 mg, m.p. 148-150°).

TLC: Rf 0.60 (silica gel; EtOAc:hexane - 1:4).

Anal Calcd: C, 78.92; H, 5.63; N, 9.21; F, 6.24 · Found: C, 78.95; H, 5.83; N, 9.07; F, 6.63 - MS (M-H)" =303. -238H. (S)-3-[[(1,1-Dimethylethyl)diphenylsilyl]oxy]-4- l[ 1-( 4-fluorophenyl )4- (1-methylethyl )-2-pheny1-1H- imidazol5- yl ] ethynyl ] methoxyphosphinyl butanoic acid, methyl ester A mixture of the Example 1 Part F crude phosphonic monomethyl ester (3.54 g, 7.86 mmoles) and trimethylsilyldiethylamine (2.70 ml, 14.21 mmoles) in dry dichioromethane was stirred at room temperature under argon for 1.0 hour. The mixture was evaporated to dryness, azeotroped with dry benzene (26 ml) and dried in vacuo. The viscous oil was re-dissolved in dry dichioromethane (14 ml), treated with 2 drops of DMF, cooled down to -10° (ice-salt bath) and treated dropwise with oxalyl chloride (0.68 ml, 7.79 mmoles). Vigorous gas evolution was observed and the yellowish brown solution was stirred at -10° for 15 minutes then at room temperature for 1.0 hours. The reaction mixture was evaporated to dryness, azeotroped with dry benzene (26 ml) and dried in vacuo.

A solution of Part G compound (1.43 g, 4.7 mmoles) in dry tetrahydrofuran (11.5 ml) was cooled down to -78° (dry ice-acetone) under argon and treated with 1.6 M n-BuLi/hexane (2.94 ml, 4.7 mmoles) and stirred at -78° for 30 minutes. The above phosphonochloridate was dissolved in dry tetrahydrofuran (11.5 ml), cooled down to -78° (dry ice-acetone) under argon and treated dropwise by cannula with a solution of the acetylenic anion, both solutions being kept at -78° throughout the addition. The reaction mixture was stirred at -78° for 30 minutes, quenched by the -239dropwise addition of 25% NH4C1 (13 ml), allowed to. warm up to room temperature then extracted with ether (3 x 13 0 ml). The combined organic’extracts were washed with 25% NH4C1 (15 ml), brine (30 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product mixture (4.3 g) was chromatographed on a silica gel column, eluting the column with acetone-.hexane mixtures (5:95,- 1:4). The desired fractions were combined and evaporated to dryness to give title compound as a light brown syrup (2.18 g, 62.9%) TLC: Rf 0.13 (silica gel; hexane:acetone - 7:3).

I. (S)-4-[[[1-(4-Fluorophenyl)-4-(1methy 1 ethy 1) -2-pheny 1 - IH-imidaz ο 1 - 5-y 1 ] ethynyl ] methoxyphosphinyl ] -3 -hydroxybutanoic acid, methyl ester_ A solution of Part H compound (974 mg, 1.32 mmoles) in dry tetrahydrofuran (13.0 ml) was treated successively with glacial acetic acid (310 μΐ, 5.29 mmoles) and 1 M (C4Hg)4NF (4.14 ml, 4.14 mmoles) and stirred overnight at room temperature under argon. The reaction mixture was cooled down to 0° (ice-water bath), treated with 5% KSS04 (14 ml) and extracted with ethyl acetate (3 x 125 ml). The combined organic extracts were washed with 5% KHS04 (16 ml), brine (35 ml), dried (anhydrous MgS04), filtered and evaporated to dryness.

The crude product (1.48 g) was dissolved in a mixture of ether (22 ml) and dry tetrahydrofuran (17 ml), cooled down to 0° (ice-water bath), -240 treated with excess diazomethane in ether and stirred at 0° for 4.0 hours. The reaction mixture was quenched by the dropwise addition of glacial acetic acid, evaporated to dryness and dried In vacuo. The crude product was chromatographed on a silica gel column, eluting the column with EtOAc .-hexane mixtures (1:1; 4:1). The desired fractions were combined to give title compound as a solid (304 mg, 46.2%).

TLC: 0.33 (silica gel; EtOAc:hexane - 4:1) Example 51 (S)-4-[[[1-(4-Fluorophenyl)-4-(l-methylethyl)-2phenyl-lH-imidazol-5-yl] ethynyl ] hydroxyphosphinyl j 3-hydroxybutanoic acid, dilithium salt A solution of Example 50 compound (304 mg, 0.6 mmole) in dioxane (7.1 ml) was treated with 1 N LiOH (2.03 ml, 2.08 mmoles), stirred at 55° (oil bath) under argon for 1.5 hours then at room temperature for 24 hours. The reaction mixture was evaporated to dryness and dried in vacuo. The crude product was chromatographed on an HP-20 column (1" x 7"), eluting the column with steamdistilled water (750 ml), 10% aqueous CyOH (500 ml), 20% aqueous cyOH (500 ml) and 50% aqueous CyOH (500 ml). The desired fractions were combined, evaporated to dryness and dried in vacuo. The solid product was dissolved in steam-distilled water and lyophilized to give title comopund as a fluffy solid lyophilate (257 mg, 84.1 %).

Other fractions: TLC: Rf 0.38 (silica gel; i-PrOH:NH4OE:H2O - 8:1:1). -2415 Anal Calcd for C-.H--FLi-N-OcP·1.52 H_0: C, 56.56; • H, 4.95; N, 5.49; F, 3.73; P, 6.08 Found: C, 56 .56; H, 4.94; N, 5.32 spectrum (400 ΜΞΖ,- CD^OD) : δ 1.37 (d, 6H, J=7 Hz) 1.79 (m, 2H) 2.31 (dd, IB, J=9.15 Hz) 2.43 (dd, IH, J=4.15 HZ) 3.24 (septet, IH, J=7 Hz) 4.26 (m, IH) 7.17- -7.35 (m, 9H).

IR(KBr) 2163 (C=C), 1590 (C=O) cm-1.

Example 52 (S)-4-[ [ 2 - [ 1 - (4-Fluorophenyl)-4-(1-methylethyl)-2phenyl-lH-imidazol-5-yl ] ethyl ] methoxyphosphinyl ] -3hydroxybutanoic acid, methyl ester_ A. (S)-3-[[(1,1-Dimethylethyl)diphenylsilyl ]oxy]-4- [2-(1-(4-fluorophenyl)-420 (1-methylethyl)-2-phenyl-lH-imidazol-5yl ] ethyl ] methoxypho sphin-ylbutanoic acid, methyl ester_ A solution of Example 50 Part H compound (839 mg, 1.14 mmoles) in dry methanol (86 ml) was treated with 10% Pd/C (213 mg) and hydrogenated at room temperature on a Parr hydrogenator overnight at *40 psi. The suspension was filtered through celite, the clear filtrate was evaporated to dryness and dried in vacuo to give title compound as a thick syrup (853 mg, 100% yield).

TLC: Rf 0.17 (silica gel; hexane:acetone - 7:3). -242B. (S)-4-[[2-[1-(4-Fluorophenyl)-4-(1methylethyl)-2-phenyl-lE-imidazol-5-yl ] ethyl ] methoxyphosphinyl ] -3-hydroxybutanoic acid, methyl ester_ A solution of Part A compound (853 mg, ^1.14 mmoles) in dry tetrahydrofuran (11.0 ml) was treated successively with glacial acetic acid (270 μΐ, 4.60 mmoles) and 1.0 M (C^Hg)4NF/hexane (3.62 ml, 3.62 mmoles) and stirred overnight at room temperature under argon. The reaction mixture was diluted with ice-water (25 ml) and extracted with ethyl acetate (3 x 100 ml). The combined organic extracts were washed with saturated NaHCO^ (15 ml), brine (25 ml), dried (anhydrous MgSO^), filtered and evaporated to dryness.

The crude product (958 mg) was chromatographed on a silica gel column, eluting the column with acetone:hexane mixtures (1:1, 4:1). The desired fractions were combined, evaporated to dryness and dried in vacuo to give title compound as a solid (443 mg, 77.0%).

TLC: Rf 0.13 (silica gel; acetone:hexane - 1:1).

Example 53 (S) -4-[[2-[1-(4-Fluorophenyl)-4-(1-methylethyl)-2phenyl - IH- imi daz ο 1 - 5 -y 1 ] ethyl ] hydroxypho sphiny1]-3hydroxybutanoic acid, dilithium salt_ A solution of Example 52 compound (443 mg, 0.88 mmole) in dioxane (10.5 ml) was treated with 1.0 N LiOH (3.05 ml, 3.09 mmoles) and stirred at 55° (oil bath) under argon for 3.0 hours then at room temperature for ~20 hours. The reaction mixture was evaporated to dryness and dried -243in vacuo. The crude product was chromatographed on an HP-20 column (1 x 8), eluting the column with steam-distilled water (750 ml), 10% aqueous CyOH (500 ml), 20% aqueous CyOH (500 ml) and 50% aqueous cyOH. The desired fractions were combined and evaporated to dryness. The resulting solid was dissolved in steam-distilled water (30 ml) and lyophilized to give title compound as a fluffy white solid (376.4 mg, 83.9%).

TLC: Rf 0.40 (silica gel; i-PrOH:NH40H:y0 - 8:1:1) Anal Calcd for C24y6FLiyyO5P-0.84 yo (Eff. mol. wt.=501.46): C, 57.43; H, 5.76; N, 5.69; F, 3.99; P, 6.08 Found: C, 57.48; N, 5.56; N, 5.59; F, 3.79; P, 6.18 ' IR(KBr) (1587 cm1, C=O COO-) H -NMR spectrum (400 MHz, CD^OD): δ 1.33 (d, 6H, J=7 Hz) 1.46-1.61 (m, 4H) 2.30 (m, 2H) 2.76 (m, 2H) 3.13 (septet, IH, J7 Hz) 4.14 (m, IH) 7.17-7.30 (m, 9H).

Example 54 (S) -4- [ [ [2- (Cyclohexy lmethyl) -4,6-dime thy lphenyl ] ethynyl] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt___________ A. N- (2,4-Dimethylbenzylidene )benzeneamine Ref. Merck U. S. Patent No. 4,375,475, pg. 39.

The title compound was prepared as described in Example 1 Part A. -244B.

N CHg Ref. Merck U.S. Patent No. 4,375,475, pg. 39. The title Pd-complex was prepared as described in Example 1 Part B.

C. 2- [ (Cyclohexy Imethyl) -4,6-dimethylbenzaldehvde Magnesium turnings (1.44 g, 59.45 mmol) under argon atmosphere were covered with 15 ml of dry Et2O and sonicated for 5 minutes. Cyclohexylmethylbromide (1.5 ml) was added to the Mg°-turnings and sonication was continued (refluxing began within minutes). Simultaneously via addition funnel 60 ml of dry Et2O and a 5 ml Et2O solution of the remainder of the cyclohexylmethylbromide was added with continued sonication (a total of 9.12 ml, 65.3 mmole of cyclohexylmethylbromide was added). After addition was complete, sonication was continued for 15 minutes and then the reaction was refluxed for 40 minutes. This Grignard reagent was cooled to room temperature and then added via cannula to a solution of the Part B Pd-complex (5.55 g, 7.43 mmol) and triphenylphosphine (15.59 g, 59.45 mmol) which had been stirring for 30 minutes under argon atmosphere and at room -245temperature. Upon the addition of the Grignard reagent the reaction became green and a precipitate formed. This reaction solution was stirred at room temperature for 2 hours followed by the addition of 37 ml of 6N HCl. This mixture was stirred for 1 hour and then filtered through a celite pad in a sintered glass funnel in order to remove solids.

The solid was washed with Et2O and the filtrate was rotavapped to remove volatiles. The resulting - residue was stirred in Et^O and filtered as above. The filtrate was washed once with saturated NaCl solution, and the organic layer was dried over MgSO^; 14.5 g of a brown oil was obtained. Purification by flash chromatography, eluting with 4% Et2O/hexane gave 1.70 g of a clear oil, 99% yield.

TLC: Rf=0.30 (5% Et2O/hexane, silica gel).

IR (CHC13) 3030, 3008, 2926, 2853, 1679, 1606, 1448, 1147 cm1 NMR (270 MHz-CDCl3) .51 (s , 1) 6.90 (s, 1) 6.85 (s, 1) 2.80 (d, 2, 2.55 (s, 3) 2.30 (s, 3) 1.80-1.55 (m, 5) 1.55-1.30 (m, 1) 1.30-0.80 (m, 5) Mass Spec (CI) m/e 231 (M+H)+ 246D. 1-(Cyclohexylmethyl)-2-(2,2-dihromoethenyl)-3,5-dimethylbenzene_ Part C aldehyde (1.68 g, 7.30 mmol) in 65 ml of dry eycy under argon atmosphere was cooled to 0°C. To this solution was added triphenylphosphine (6.13 g, 23.4 mmol) and the solution was stirred until all of the solid was dissolved. At 0°C, CBr4 (3.63 g, 11.0 mmol) was added as a 20 ml cycy solution. The reaction solution became orange. The reaction was stirred at 0°C for 1.5 hours, then quenched with saturated NaHCO^ solution and stirred vigorously. The aqueous layer was removed and extracted 2 times with cycy. The organic solutions were combined, washed once with saturated NaHCO3 solution, and dried over MgS04· Filtration and solvent removal gave 9.6 g of a brown solid. Purification by flash chromatography eluting with 100% hexane gave 2.52 g, 90% yield, of a clear oil.

TLC 0.62 (5% Eyo/hexane, silica gel) PMA IR (CHC1-) 2925, 2852, 1608, 1472, 869 cm 1, J NMR (270 MEz, CDCy ) 7.39 (s, 1) 6.87 (s, 1) 6.80 (s, 1) 2.37 (d, 2, J-6 2.27 (s 3) 2.24 (s, 3) 1.70 (a, 5) 1.45 (a, 1) 1.38-1.10 (a, 3) 0.90 (a, 2) -247Mass. Spec. (CI) m/e 387 (M+H) + Ε. 1-(CyclohexyImethyl)-2-ethynyl-3,5dimethylbenzene_ The Part D vinyl dibromide (2.51 g, 6.5 • mmol) under argon atmosphere was stirred with TEF (30 ml) and cooled to -78°C. To the dibromide solution at -78°C was added n-butyllithium (5.20 ml of 2.5 M solution in Hexane) over 3 minutes.

The resulting pink reaction mixture was stirred at -78°C. After 1.5 hours at -78°C, the reaction was quenched with saturated aqueous NH4C1 solution and then warmed to room temperature. The aqueous layer was removed and extracted twice with Et2O and once with hexane. All of the organic layers were combined and dried over MgS04 to give 1.65 g of a brown oil after filtration and solvent removal. Purification by flash chromatography eluting with hexane gave 1.39 g, 95% yield, of title acetylene.

TLC 0.50 (5% toluene/hexane, silica gel), PMA.

IR (CHC13) 3305, 3007, 2924, 2852, 2096, 1607, 1470, 1448 cm1.

XH NMR (270 ΜΞΖ , cdci3) δ 6.86 (s, 1) 6.79 (S, 1) 3.39 (S, 1) 2.63 (d, 2, J=6. 2.63 (m, 6) 1.20 .(m, 3) 1.00 (m, 2) Mass Spec(CI) m/e 227 (M+H)+ -248F. (S )-4-[[[2-(Cyclohexylmethyl)-4,6dimethylphenyl]ethynyl]methoxyphosphinyl ]-3-[[(1,1-dimethylethyl)diphenyl silyl]oxy1butanoic acid, methyl ester Part E acetylene (1.36 g, 6.0 mmol) in 30 ml of dry THF under argon atomosphere was cooled to -78°C. To this solution was added n-BuLi (2.4 ml, of 2.5 M solution in hexane); the reaction solution became a burgundy color, stirred for 1 hour at -78°C. Example 1 Part F phosphonochloridate (4.68 g, 9.6 mmol) was stirred with 30 ml of dry THF and cooled to -78°C. The acetylenic arH on was then cannulated into the phosphonochloridate solution over 15 minutes.

After the transfer was complete, the reaction was stirred at -78°C for 1 hour, then quenched with saturated aqueous NH4C1 and warmed to room temperature. The THF was removed from the reaction mixture, and the resulting material was dissolved with Et2O and ^0. The aqueous layer was extracted 3 times with Et2O. All the Et2O extracts were combined and washed once with saturated NafiCOg solution and once with brine, then dried over MgS04· Filtration and solvent removal gave an orange oil which was purified by flash chromatography eluting with 3.5:5.5:1/EtOAc:Hexane: toluene. The title acetylenic phosphinate (2.80 g, 70% yield) was obtained as a clear oil.

TLC Rf=0.37 (5:l:4/Hexane:toluene:EtOAc, silica gel) PMA. -249 IR (CHC13) 3025, 3001, 2929, 2856/2164, 1736, 1607, 1240, 1112, 1039, 823 ^H NMR (270 MHz, CDC13) δ 7.66 (m, 4) 7.30 (m, 6), 6.87 (s, 1), 6.81 (s, 1) 4.66 (m, 1) 3.70&3.66 (d's, 3, J=14.3 3.56 (s, 3) 2.95 (m, 1) 2;69 (m, 1) 2.50 (m, 3) 2.32 (m, 2) 2.30 (s, 3) 2.27 (s, 3) 1.60 (m, 6) 1.03 (m, 3) 1.02 (s, 9) 0.95 (m, 2) Mass Spec (CI) m/e 659 (M+H) G. (S)-4-[[[2-(CyclohexyImethyl)-4,6dimethy lphenyl ] ethynyl ] methoxyphos25 phinyl]-3-hydroxybutanoic acid, methyl ester__ The Part F acetyleneic phosphinate (0.633 g, 0.96 mmol) was stirred under argon atmosphere at room temperature with 14.0 ml of dry THF.

Glacial acetic acid (0.22 ml, 3.84 mmol) was added to the phosphinate solution followed by the dropwise addition over 5 minutes of n-Bu^NF (2.62 ml of 1.1 M THF solution). After stirring for 19 -250hours at room temperature, the reaction was quenched with ice water, and the aqueous layer was extracted 3 times with EtOAc. The combined organic solutions were washed 2 times with saturated agueous NaHC03 solution and once with saturated NaCl solution. The organic layer was dried over Na2SO4 and filtered to give a yellow gum (0.658 g) after solvent removal. Purification by flash chromatography eluting with EtOAc provided the title alcohol (0.23 g, 65%) as a clear oil.

TLC Rf=0.51 (6:4 Acetone/hexane, silica gel) PMA IR (CHC13) 3450 (br), 3005, 2926, 2852, 2164, 1733, 1607, 1448, 1439, 1039 cm1.

NMR (270 MHZ, CDCy) δ 6.89 (s, 1) 6.82 (S, 1) 4.63 (m, 1) 3.88&3.87 (2d’s, 3, J=12 Hz) 3.69 (s, 3) 2.70 (s, 2) 2.62 (d, 2, 2.43 (s, 3) 2.32 (s, 3) 2.27 (m, 2) 1.65 (m, 6) 1.19 (m, 3) 1.00 (m, 2) Mass Spec (CI) m/e 421 (M+H)+ 251 Ξ. (S )-4- [ [ [2-(Cyclohexylmethyl )-4,6dime thy lphenyl] ethynyl ] hydroxypho sphinyl]-3-hydroxybutanoic acid, dilithium salt The Part G diester (0.212 g, 0.51 mmol) was stirred in dioxane (7 ml) and 1.5 ml of IN LiOH (1.5 mmol) was added at room temperature. The reaction was warmed to 55 °C and after 20 minutes the resulting precipitate was solubilized by adding 5 ml of dioxane and 4 ml of yo. After 2 hours 30 minutes at 55°C, the reaction was cooled to room temperature, the solvent was removed under reduced pressure, and the resulting white solid was placed under vacuum for 15 minutes. The product was purified on a 3.0 x 19 cm column of HP-20 resin eluting first with 100 ml of yo followed by 1:1 MeOH/yo. Lyophilization of product gave 0.145 g (71%) of a white lyophilate Rf = 0.39 (7:2:1 nPrOH/NH^OH/y0, silica gel) PMA.

IR (KBr) 3700-3100 (br), 2922, 2850, 2167, 1590, .447, 1179, 1076 ι cm1. Ή NMR (400 MHz, D2O) 6.99 (s, 1) 6.94 (s, 1), 4.53 (m, 1), 2.64 (m, 1), 6.22 (d, 2, J=6.2 2.39 (s, 3) 2.37 (m, 1) 2.26 (s, 3) 2.02 (m, 2) 1.60 (m, 6) 1.14 (m, 3) 1.00 (m, 2) Mass Spec (FAB) m/e 409 (M+H)+, 397 (M-2 Li + Ξ) Anal Calcd for C21H27O5P Li2-1.72 H20: C, 57.96; H, 7.05; P, 7.12 Found: C, 57.96; H, 7.18; P, 6.96 Example 55 4-[[2-[2-(Cyclohexylmethyl)-4,6-dimethylphenyl]- . ethenyl ]hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt A. (E)-[2-[2-(Cyclohexylmethyl)-4,6dime thy lphenyl ] ethenyl ] phosphonic acid, dimethyl ester_ Dime thy lme thy lphosphonate (1.64 g, 13.2 mmol) in dry THF (20 ml) under argon atmosphere was cooled to -78°C. To this solution at -78°C was added n-butyl lithium (5.0 ml, 2.5 M solution in hexane, 12.4 mmol) over 5 minutes. After the addition was complete, the milky white reaction mixture was stirred for 1 hour. To the anion solution at -78°C, a 10 ml THF solution of the Example 54 Part A aldehyde (1.9 g, 8.26 mmol) was added via addition funnel over 10 minutes. After stirring for 35 minutes at -78°C, the reaction was quenched with saturated aqueous NH^Cl (8 ml) and then allowed to warm to room temperature. The organic layer was removed and the aqueous layer was extracted-3 times with EtOAc. The organics were combined and washed once with brine and dried -253over Na2SO4- Filtration and solvent removal gave 3.25 g of a yellow oil.

The above yellow oil (3.25 g) was dissolved in dry toluene and refluxed through a soxhlet extractor containing 4A molecular sieves. p-Toluenesulfonic acid-H2O (0.080 g, 0.42 mmol) was added at time 0, 3.5 and 18 hours. After 22 hours at reflux, the reaction was cooled to room temperature, and the toluene was removed in vacuo. The resulting yellow residue in EtOAc was washed twice with saturated NaHCO3 solution, dried over Na2S04 and filtered to give a yellow oil (A) after solvent removal.

The aqueous solution was acidified with concentrated HCI, extracted 3 times with EtOAc, dried over MgSO4> filtered and solvent removed to give 0.535 g of a yellow oil. This yellow oil was then refluxed in 6.0 ml of HC(OCH)3 for 24 hours followed by removal of excess HCiOCHg)^ under vacuum. This material was combined with yellow oil (A) and purified by flash chromatography eluting with 80% EtOAc/hexane. The title vinyl phosphonate (2.07 g, 73%) was obtained as a white solid.

TLC Rf=0.45 (1:1 Acetone/hexane, silica gel) PMA. IR(KBr) 2921, 2851, 1623, 1447, 1243, 1186, 1060, 1027 cm1.

^H NMR (270 MHz, CDC13) δ 7.65 (dd, 1, J=23.6 Hz, 18.1 Hz) 6.88 (s, 1) 6.82 (s, 1) .80 (dd, 1, J=21.0 Hz, 18.1 Hz) 3.79 (d, 6, J=11.5 Hz) 2.49 (d, 2, 2.29 (s, 3) 2.28 (s, 3) 1.65 (m, 5) 1.45 (m, 1) 1.25-0.80 (m, 5) Mass Spec (CI) m/e 337 (M+H)+ B. (E)-[2-[2-(Cyclohexylmethyl)-4,6dimethylphenyl]ethenyl]phosphonic acid, methyl ester Part A vinyl phosphonate (2.07 g, 6.16 mmol) was stirred with 14 ml of dioxane at room temperature. To this solution was added 1.0 N LiOH (9.24 ml, 9.24 mmol), and this mixture was warmed to 75°C. After 3.5 hours at 75°C, the reaction was cooled to room temperature, and the dioxane was removed in vacuo. The resulting residue was stirred with E^O and acidified to pE~2 with IN HCl. The aqueous solution was extracted 3 times with EtOAc, dried over Na2SO4, filtered and solvent removed to give 1.95 g of off-white solid. TLC Rf = 0.58 (8:1 il/C^C^:^OH:AcOH, silica gel), PMA.

NMR (270 MHz, CDCl3 ) 12.11 (s, .1) 7.61 (dd, , 1, J=24.17 HZ, 17.58 Hz) 6.87 (s, 1) 6.81 (s, 1) 5.88 (dd, , 1, J=21-43 Hz, 17.58 Hz) 3.78 (d, 3, J=11.54 Hz) 2.47 (d, 2, J=6.6 Hz) 2.29 (s, 3) -25510 2.28 (s, 3) 1.65 (m, 5) 1.45 (m, 1) 1.15. (m, 3) 0.95 (m, 2) C. (E)-4-[[2-[2-(Cyclohexylmethyl)-4,6dimethylphenyl ] ethenyl ] methoxyphosphinyl]-3-oxobutanoic acid, methyl · ester_ The Part B monomethyl phosphonate (1.95 g, 6.06 mmol) in 50 ml of dry CH2C12 was stirred at room temperature under argon atmosphere with (C^s^NSiiC^ )3 (1.76 g, 12.1 mmol) for 1 hour 25 minutes. The CH2C12 was removed in vacuo, and the resulting yellow oil was azeotroped once with benzene and placed under high vacuum for 20 minutes. This oil was then dissolved in dry CH2C12 (50ml) under argon atmosphere and cooled to 0°C. Two drops of dry DMF were added followed by slow .dropwise addition of oxalylchloride (0.92 g, 7.27 mmol):gas evolution was observed. The reaction was stirred for 15 minutes at 0°C then warmed to room temperature and stirred for 1 hour. The was removed in vacuo from the reaction mixture, and the resulting orange oil was azeotroped twice with dry benzene and pumped under high vacuum for 1 hour thus giving the phosphonochloridate.

The dianion of methylacetoa'cetate was prepared as follows. Pentane washed NaH (0.25 g oil dispersion, 8.7 mmol) in dry nut' (10 ml) under argon atmosphere was cooled to 0°C. Methyl 256acetoacetate (0.92 g, 7.9 mmol) was added to the NaH suspension as a 10 ml THF solution and stirred for 20 minutes, and then n-butyllithium (2.90 ml, 2.5 M in hexane, 7.3 mmol) was added followed by stirring for 45 minutes. The dianion solution was cooled to -78°C and a 10 ml THF solution of the above prepared phosphonochloridate was cooled to -78°C and added to the dianion solution over 15 minutes. After stirring at -78°C for 30 minutes, the reaction was quenched with saturated aqueous NH^Cl solution and warmed to room temperature. The THF was removed from the reaction mixture, and the resulting orange oil was taken up in 1:1 EtOAc/yo. The agueous layer was detracted 3 times with EtOAc. The combined EtOAc extracts were combined and washed 2 times with saturated NaHCO3 solution and once with saturated NaCl solution, then dried over Na^SO^.

Purification of the crude product (2.75 g) by flash chromatography eluting with EtOAc gave the title keto ester (0-.97 g, 42%) as a yellow oil.

NMR (270 MHz, cdci3) δ 7.71 (dd, 1, J=22.52 Hz, 18.13 Hz) 6.89 (s, 1) 6.83 (s, 1) 5.89 (dd, 1, J=26.37 Hz, 17.58 Hz) 3.79 (s, 2) 3.73 (s(br), 6) 3.36 (dd, 2, J=18.68 Hz, 5.5 Hz) 2.50 (m, 2) 2.30 (s, 3) 2.29 (s, 3) -2571.70 (a, 5) 1.45 (m, 1) 1.10-0.80 (a, 5) D. 4-[[2-[2-(Cyclohexylmethyl)-4,6dimethylphenyl]ethenyl]methoxyphosphinyl] -3 -hydroxybutanoic acid, methyl ester_____ The Part C β-keto phosphonate (0.97 g, 2.31 10 mmol) was stirred in THF (10 ml) under argon atmosphere and cooled to 0°C. Solid NaBH^ (0.087 g, 2.31 mmol) was added to the THF solution followed by the dropwise addition of 2 ml of CyOH; gas evolution resulted. After stirring for 50 minutes at 0°C, the reaction was quenched with ml of acetone followed by the addition of CC-4 silica gel. The reaction was warmed to room temperature and filtered through sintered glass. The solvent was removed from the filtrate to give a yellow oil which was purified by flash chromatography eluting with EtOAc. The title alcohol was obtained as a clear oil (0.65 g, 66%). TLC Rf = 0.29 (50% Acetone/hexane, silica gel), PMA.

M.P. 80-83°C.

IR (KBr) 3282 (br), 2923, 2918, 2848, 1743, 1614, 1450, 1442, 1080, 1045 cm’1. ΧΗ NMR (270 MHZ, CDClg) 1) 1) 1) 1) 7.68. (m, 6.88 (s, 6.82 (s, .89 (m, -2584.50 4.00 3.77&3.74 3.69&3.68 2.65 2.50 2.30 2.28 2.15 1.66 1.45 1.30 to 0.8 Mass Spec ( (a, 1) (m, 1) (2 d’s, 3, (2 s's, 3) (d, 2, J=6 (a, 2) (S(br),3) (s, 3) (a, 2) (Br 5) (B, 1) (B, 5) I) m/e 423 J=11.0 Hz) Hz) (M+H)+ E. 4-[[2-[2-(Cyclohexylmethyl)-4,6dime thy lphenyl ] ethenyl ] hydroxyphosphinyl ]-3-hydroxybutanoic acid, dilithium salt Part D diester (0.565 g, 1.33 mmol) was stirred with 14 ml of dioxane until all of the solid went into solution. 1.0 N LiOH (4.0 ml) was added and the solution warmed to 55°C. After 30 minutes, the reaction became turbid. After 2 hours at 55°C, the reaction was cooled to room temperature, and the solvent was removed on the rotavap to give a white solid. The crude product was purified on a 3.0 x 15 cm column of HP-20 resin eluting first with 100 ml of I^O followed by 75% MeOH/HjO. Lyophilization of product fractions gave title compound in the form of a white lyophilate (0.524 g, 98%). -259TLC Rf = 0.41 (7:2:1 nPrOH/NE40H/H20, silica gel) PMA.

IR (KBr) 3700-3100 (br), 2921, 2851, 1591, 1446, 1222 , 1195, 1161, 1051 cm . 5 NMR (400 MHz, D20) δ 7.25 (dd, 1, J=18.68 Hz) 6.98 (s, 1) 6.94 (s, 1) 6.00 (dd, 1, J=17.95 Hz) 10 4.33 (m, 1) 2.53 (dd, 1, J=15.0 Hz, 4.4 Hz)· 2.49 (d, 2, J=7.0 Hz) 2.36 (dd, 1, J=15.0 Hz, 8.43 Hz)· 2.27 (s, 3) 15 2.25 (s, 3) 1.89 (dd, 2, J=14.3 Hz, 6.6 Hz) 1.60 (m, 5) 1.45 (m, 1) 1.13 (m, 3) 20 0.95 (m, 2) Mass Spec. (FAB) m/e 407 (M+H)+, 347 (M+ -2 Li+ Anal Calcd for C21H2gO5PLi2-0.38 H2O: C, 61.03; H, 7.45; P, 7.49 Found: C, 61.03; H, 7.63; P, 7.66 Example 56 (s) -4- [ [ 2- [ 2 - (Cyclohexy lme thyl) -4,6-dime thy lphenyl ] ethyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt_·__ A. 4- [[[2-(Cyclohexy Imethyl )-4,6-dimethylphenyl]ethyl]methoxyphosphinyl] - 3 [ [ (1, l-dimethylethyl) diphenylsilyl ] oxy ] butanoic acid, methyl ester 260 Argon was bubbled through a 45 ml methanol solution of Example 54 Part F acetylenic phosphinate (1.33 g, 2.02 mmol) for 10 minutes.

To this methanol solution in a Parr bottle was added 10% Pd/C (0.34 g). Hydrogenation on a Parr apparatus at 40 psi for 20 hours gave 1.39 g of an oil after filtration through a celite pad in a sintered glass funnel. Purification by flash chromatography eluting with 1:1 EtOAc/hexane gave the title phosphinate (1.25 g, 94%) as a clear oil.· TLC Rf ~ 0.21 (5/4/1 Hexane/EtOAc/toluene, silica gel) PMA.

IR (CHC13) 3600-3200 (br), 3003, 2925, 2853, 1731, 1448, 1440, 1247, 1233, 1179, 1044 cm’1.

NMR (270 MHz, CDC13) δ 6.83 (s, 1) 6.78 (s, 1) 4.50 (m, 1) 80&3.77 (2 d's, 3, 72&3.71 (2 s's, 3) 3.38 (m, 1) 2.87 (m, 1) 2.60 (m, 2) 2.45 (d, 2, J=6. 29&2.28 (2 s’s, 3) 2.25 (s, 3) 2-00 (m, 4) 1.70 (m, 6) 1.45 (m, 1) 1.30-0.90 (m , 6) Mass Spec (El) m/e 424 (M)+ -2615 Β. (S)-4-[[2-[2-(Cyclohexylmethyl)-4,6dimethylphenyl ] ethyl ] methoxyphosphinyl ] 3-hydroxybutanoic acid, methvl ester A solution of the Part A silyl ether (1.2 g, 1.8 mmol) in THF (20 ml) was stirred under argon atmosphere at room temperature. To this solution was added sequentially 0.41 ml of glacial acetic acid and n-Bu4NF (5.0 ml of a 1.1 M THF soluiton, 5.44 mmol) which was added dropwise over 5 minutes. After stirring for 23 hours at room temperature, the reaction was quenched with 50 ml of ice water and stirred vigorously. The THF was removed in vacuo, and the resulting material was diluted with water and extracted 3 times with EtOAc. The EtOAc extract was washed 2 times with saturated NaECO3 solution and once with brine then dried over Na2SO4- Filtration and solvent removal gave a clear oil (1.3 g). The product was purified by flash chromatography with 100% EtOAc to give the title alcohol (0.55 g, 72%) as a clear oil.

Rf=0.22 (EtOAc, silica gel) PMA IR (CHC13) 2999, 2950, 2929, 2856, 1734, 1244, 1195, 1183, 1112, 1105, 1065, 1043 cm1. 1H NMR (270 MHz, CDC13) δ 7.65 (m, 4) 7.28 (m, 6) 6.81 (s, 1) 6.76 (s, 1) 4.51 (m, 1) 3.62&3.60 (2 d’s, 3, J=5.3 Hz) 3.49&3.46 (2 s's, 3) 262- 2.97 (m, 1) 2.65 (m, 2) 2.35S2.33 (2 d's,' 2, 2.25 (2 s's, 3) 2.16 (2 s's, 3) 1.84 (m, 1) 1.68 (m, 6) 1.55 (m, 1) 1.18 (m, 2) 1.15 (m, 3) 1.00&0.99 (2 s's, 9) 0.91 (m, 2) Mass Spec (CI) m/e 663 (M+H)+ C. (S)-4-[[2-[2-(CyclohexyImethyl)-4,6dj methylphenyl ] ethyl ] hydroxyphosphinyl ] 3-hydroxybutanoic acid, dilithium salt Part. B diester (0.552 g,. 1.3 mmol) was stirred in 14 ml of dioxane at room temperature.

To this solution was added 1.0 N LiOH (3.9 ml, 3.9 mmol) and then the reaction was warmed to 55°C.

After stirring for 30 minutes a cake-like precipitate formed which was solubilized by adding 5 ml of H^O. After 2 hours 15 minutes at 55°C, the reaction was cooled to room temperature, and the volatiles were removed in vacuo leaving a white solid. The product was purified on a 3.0 x 30 cm HP-20 column eluting first with 100 ml of followed by 1:1 CHgOH/^O. Product fractions were lyophilized to give 0.482 g,· 92% yield of white lyophilate.

TLC R£=0.36 (7:2:1 n-PrOH/NH^H/^O, silica gel) PMA. -263IR (KBr) 3700-3100 (br), 2923, 2852, 1588, 1446, 1410, 1159, 1132 I, 1048 cm a NMR (400 MEz, d2o) δ 6.93 (s, 1) 6.91 (s, 1) 4.34 (m, 1) 2.80 (m, 2) 2.50 (dd, 1, J=14.7 HZ, 4.4 Hz) 2.48 (d, 2, J=5.12 HZ) 2.38 (dd, 1, J=15.0 Hz, 6.6 Hz) 2.29 (s, 3) 2.26 (s, 3) 1.84 (m, 2) 1.65 (m, 7) 1.48 (m, 1) 1.15 (m, 3) • 1.00 (m, 2) Mass Spec {] FAB) m/e 397 (M+H-2L+)+, 409 (M+H)+ Anal Calcd : for C ’21H3105PLl2’°*76 H20: C' 59.76; H, 7.77; P, 7.34 Found C, 59.76; H, 7.91; P., 7.53 Exatople 57 [[[[4'-Fluoro-3,3',5-trimethyl[1,1'-biphenyl]25 2-yl ] oxy ] methyl ] hydroxypho sphinyl ] -3-hydroxybutanoic acid, dilithium salt__ A. 4'-Fluoro-3,3’,5-trimethyl[1,1’biphenyl]-2-carboxaldehyde_ Ref. Merck U. S. Patent No. 4,375,475, pp. 37 and 38.

The title compound was prepared as described in Example 1 Parts A to C. -264B. 4' -Fluoro-3,3’,5-trimethyl[1,1'biphenyl 1-2-methanol Part A aldehyde (1.03 g, 4.26 mmol) was stirred in 30 ml of dry CH2C12 under argon atmosphere. A 20 ml CH2C12 solution of m-Clperhenzoic acid (1.06 g, 5.11 mmol) was added dropwise over 15 minutes to the aldehyde solution at room temperature. After stirring for 58 hours at room temperature, the reaction mixture was rotavapped to dryness, and the resulting yellow solid was dissolved in THF and treated with 6.4 ml of 2N KOH. This mixture was stirred at room temperature for 5.5 hours, then the THF was removed from the reaction. The resulting residue was diluted with H^O and the agueous solution was extracted 3 times with Et2O which was then dried over MgS04· The crude yellow oil obtained after filtration and. solvent removal was purified by flash chromatography eluting with 5% Et2O/hexane. The title phenol was obtained as white solid (0.843 g, 100%).

TLC Rf = 0.37 (10% Et2O/hexane, silica gel) PMA M.P. 83-86eC.

IR (KBr) 3512, 3500 (br), 2950, 1504, 1482, '1238, 1231, 1215 cm1.

NMR (270 MHz , cdci3) δ 7.20 (m. 2) 7.07 (t, 1, J=9. 6.92 (s, 1) 6.82 (s, 1) 4.95 (s, 1) 2.31 (s, 3) 2.25 (s, 6) -265Mass Spec (CI) m/e 231 (M+H)+ C. [[[4’-Fluoro-3,3',5-trimethyl[1,1' biphenyl ] -2-yl ] oxy ] methyl ] phosphonic acid, diethyl ester_:_ A suspension of pentane washed NaH (0.30 g 80% oil disp, 10.3 mmol) in 15 ml of dry DMF under argon atmosphere was cooled in an ice bath. A 10 ml DMF solution of the Part B phenol (2.36 g, 10.3 mmol) was added to the NaH suspension over 15 min: gas evolution was observed. After the addition was complete, the reaction was warmed to room temperature and stirred for 35 minutes.. At room temperature, an 11 ml DMF solution of the diethyl tosyloxy methy lphosphonate (3.31 g, 10.26 mmol, for prep, see Holy, A., Rosenberg, I., Collection Czechoslovak Chem. Commun., Vol. 47, 1982) was added dropwise over 10 minutes. After 22 hours at room temperature, the reaction was quenched with saturated aqueous NH^Cl solution and the DMF was removed in. vacuo. The resulting solid was dissolved in EtOAc and H^O, and the aqueous layer was washed 2 times with EtOAc. The combined EtOAc extracts were washed with saturated aqueous NaHCO3 solution and brine then dried over MgS04· Filtration and solvent removal gave 4.3 g of crude title ether compound which was purified by flash chromatography eluting with 70% EtOAc/hexane. The title ether (3.2 g, 82%) was obtained as a clear oil.

TLC 0.52 (50% Acetone/hexane, silica gel) PMA.

IR (Film) 2983, 2925, 2910, 1504, 1474, 1213, 1032, 971 cm1. -266*Η NMR (270 MHZ, CDCy ) δ 7.33 (m, 2) 7.01 (t, 1, J=10.0 Hz 6.96 (s, 1) 6.91 (s, 1) 4.07 (m, 4) 3.69 (d, 2, J=9. 2.34 (s, 3) 2.31 (d, 3, J=l. 2.29 (s, 3) 1.31 (t, 6, J=7.

Mass Spec (CI) m/e 3S1 Hz) Hz) Hz) (M+H)+, 242 (M+-C4H1QPO3)+ D. [ [ [4 ’-Fluoro-3,3,5'-trimethyl[1,1’biphenyl ] -2-yl ] oxy ] methyl ]phosphonic acid, monoethyl ester_ Part C diester (3.21 g, 8.45 mmol) in 40 ml of dioxane was stirred with 12.7 ml of IN LiOH (12.67 mmol) at 70°C. After 3 hours at 70°C, the reaction was cooled to room temperature and the dioxane was removed in vacuo. The aqueous solution was diluted with yo and cooled in an ice bath, then acidified to pH~l with 6N HCl leaving a milky white solution. This·solution was then extracted 3 times with EtOAc; the EtOAc extract was dried over MgS04 and filtered to give 3.12 g of a clear gum.

TLC Rf=0.20 (9/0.5/0.5 Cycy/AcOH/MeOH, silica gel) PMA NMR (270 MHz, CDCy) δ 10.26 (s, 1) 7.35 (2) 6.96 (m, 3) -2675 4.05 (dq, 2. , J=7.14 Hz 3.63 (d, 2, J=9.34 Hz) 2.31 (s, 3) 2.29 (s, 3) 2.28 (d, 3, J=2.2 Hz) 1.28 (t, 3, J=7.14 Hz) Ε. 4-[Ethoxy[[[4'-fluoro-3,3’,5-trimethyΙΕ 1, 1' -biphenyl] -2-yl] oxy ]methyl]phos10 phinyl]-3-oxobutanoic acid, methyl ester The Part D phosphonic acid (2.96 g, 8.42 mmol) in 75 ml of dry CH2C12 under argon atmosphere was stirred at room temperature with (C2E5)2Si(CZ3)2 (2.44 g, 16.84 mmol). After stirring for 1 hour 10 min, the CH2C12 was removed in vacuo and the resulting oil was azeotroped once with benzene, then placed under high vacuum for 15 minutes. This oil was dissolved in 75 ml of dry CZ2C12 and cooled to 0°C under argon atmosphere.

Three drops of dry DMF were added to the cooled solution followed by dropwise addition of oxalyl chloride (1.18 g, 9.26 mmol). The reaction was stirred at 0°C for 20 minutes, warmed to room temperature and stirred for an additional hour.

The reaction solvent was removed in vacuo and the maroon oil phosphonochloridate was azeotroped 2 times with benzene then placed under high vacuum for 1 hour.

The dianion of methylacetoacetate was prepared as described in Example 55 Part C [methylacetoacetate (1.27 g, 10.95 mmol), NaH (0.350 g oil disp., 12.05 mmol), n-butyllithium (4.0 ml of 2682.5 M solution in hexane, 10.07 mmol), THF (35 ml)].

The above prepared phosphonochloridate in 10 ml of THF, cooled to -78°C, was added dropwise over 20 minutes to the dianion solution also at -78°C. After stirring at -78°C for 40 minutes, the reaction was quenched at -78°C with saturated aqueous NH4Cl and allowed to warm to room temperature. The THF was removed in vacuo, and the resulting residue was dissolved in EtOAc and H^O. The aqueous layer was extracted 2 times with EtOAc, and all of the EtOAc solutions were combined and washed once with saturated NaHCO3 solution and once with brine then dried over Na2SO4· Crude title phosphinate was obtained as an orange oil (4.0 g) which was purified by flash chromatography eluting with 75% EtOAc/hexane.

Title phosphinate (1.4 g, 42%) was obtained as a yellow oil.

TLC Rf=0.25 (75% EtOAc/hexane, silica gel), PMA. IR(CHC13) 3004, 2954, 2925, 1744, 1718, 1643, 1472, 1449, 1438, 1425, 1236, 1037 MHz, CDC13) (m, 2) (m, 3) (2 m's, 2) (m, 2) (2 s’s, 3) (m, 1) (m, 1) (2 s’s (br), 9) 1541, 1503, cm NMR (270 δ 7.30 6.95 4.05&3.90 3.75 3.73&3.66 3.55 3.25 2.33&2.29 -2695 1.28&1.12 (2 t's, 3, 'J=7.1 Hz) Mass Spec (CI) m/e 451 (M+H) + F. 4-[[[[4’-Fluoro-3,3’, 5-trimethyl[1,1’biphenyl]-2-yl]oxy]methyl]ethoxyphosphinyl]-3-hydroxybutanoic acid, methyl ester_ A solution of Part E ketone (1.39 g, 3.09 mmol) in THF (15 ml) under argon atmosphere was cooled to 0°C. To the cooled solution was added NaBH4 (0.12 g, 3.09 mmol) followed by slow dropwise addition of CH^OH (2.8 ml). After 1 hour at 0°C, the reaction was quenched with acetone followed by 1.4 g of CC-4 silica gel and then warmed to room temperature. The reaction was filtered, and the filtrate was rotavapped to give a yellow oil. The oil was flash chromatographed eluting with 90% EtOAc/hexane and product containing fractions were combined and solvent was removed in vacuo. The resulting yellow oil was crystallized from Eyo/hexane and the resulting crystals were triturated with Eyo/hexane to give white crystals (0.320 g) of title alcohol.

TLC R£=0.38 (90% EtOAc/hexane, silica gel) PMA.

M.P. 116-119°C.

IR (KBr) 3288 (br), 3000, 2950, 2920, 1735, 1503, 1473, 1440, 1311, 1232, 1195 cm-1.

NMR (270 MHZ, CDClj) δ 7.28 (m, 2) 7.05 (t, 1, J=6.0 HZ) 6.98 (s, 1) 6.90 (s, 1) 4.42 (m, 1) 270- 4.05&3.85 (m, 2) 3.75 (d, 2, J=6 3.70 (s, 3) 2.55 (ra, 2) 2.32 (s, 6) 2.30 (s, 3) 2.00 (m, 2) 1.30 (t, 3, J=7 Hz) Mass Spec (CI) m/e 453 Hz) (M+H)*, 435 (M-H2O)* G. 4-[[[[4’-Fluoro-3,3’,5-trimethyl[1,1'diphenyl ] - 2 -y 1 ] oxy ] methyl ] hydroxypho s phinyl]-3-hydroxybutanoic acid, dilithium salt_ At room temperature IN LiOH (2.0 ml) was added to a 13 ml dioxane solution of Part F diester (0.293 g, 0.65 mmol). The reaction mixture was warmed to 55°C and stirred for 1 hour 45 minutes, then cooled to room temperature. The reaction mixture was rotavapped to dryness and gave a white solid which was then placed under high vacuum for 10 minutes. The crude product was purified by chromatography on a 15 cm x 3.0 cm column of HP-20 eluting first with 100 ml of followed by elution with 50% CH^OH/^O. Pure title dilithium salt was obtained as a white lyophilate (0.295 g, 88%).

TLC Rf=0.38 (7:2:1 n-PrOH/NH^H/^O, silica gel) PMA IR (KBr) 3400 (br), 3021, 3011, 2981, 2958, 2924, 1575, 1503, 1475, 1446, 1430, 1401, 1231, 1175, 1087 cm1. -271 Ή NMR'(270 MEz, D, 20) 7.20 (m, 2) 7.07 (d, 1, J= 7.03 (s, 1) 6.86 (s, 1) 4.03 (m, 1) 3.40 (d, 2, J= 2.24 (s, 3) 2.21 (s, 3) 2.20 (m, 2) 2.17 (s, 3) 1,45 (m, 2) • Mass Spec (FAB) m/e 423 (M+H)+ Anal Calcd for C2QH22O6 FPLi2*0.95 H20: C, 54.67; 15 H, 5.48; F, 4.32; P, 7.05 Found: C, 54.37; Ξ, 5.03; F, 4.31; P, 7.55 Example 58 4-[[[4’-Fluoro-3,3’,5-trimethyl[1,1’-biphenyl]-220 yl ] methyl ] hydroxyphosphinyl ] - 3-hydroxybutanoic • acid, dilithium salt A. 4'-Fluoro-3,3’,5-trimethyl[1,1’biphenyl]-2-methanol_ To a 9 ml EtOH (Abs) solution of NaBH^ (0.12 g, 3.18 mmol) was added the Example 57 ' Part A aldehyde (0.70 g, 2.89 mmol) as an Et2O-EtOH (4.5 ml/3.0 ml) solution. This reaction mixture was stirred at room temperature for 2 hours and then guenched with saturated NH^Cl solution.

The resulting solid precipitate was removed by filtration. The filtrate was rotavapped to dryness and the resulting solid was dissolved in Et2O and H2O. The aqueous, layer was washed 2 times with -272Eyo, and the combined Eyo solutions were dried over MgS04.

After filtration and solvent removal 0.70 g of a white solid was obtained. The solid was purified by flash chromatography eluting with 33% Eyo/hexane giving 0.675 g (100% yield) of title alcohol.

TLC 0.11 (15% Eyo/hexane, silica gel) PMA.

M.P. 101-102°C.

IR (KBr) 3351, 3293, 3267, 3260, 3024, 3016, 2980, 2939, 2921, 1605, 1601, 1502, 1451, 1355, 1236, 1228, 1189, 1118, 999 ca’ . NMR (270 MHz, CDClj) δ 7.15 (a, 2) 7.03 (a, 2) 6.90 (s, 1) 4.55 (d, 2, J=6.0 Hz) 2.48 (s, 3) 2.33 (s, 6) Mass Spec (CI) m/e 244 (M ), 227 (M+-OH) B. [[4*-Fluoro-3,3’,5-trimethyl[1,1’biphenyl]-2-yl]methyl]phosphonic acid, diethyl ester___ A 50 ml cycy solution of Part A alcohol (1.94 g, 7.95 mmol) under argon atm. was cooled to 0°C. To this cooled solution was added EyN (0.965 g, 9.54.mmol) followed by dropwise addition of MsCl (1.00 g, 8.75 mmol). The reaction was stirred at 0°C for 30 minutes and then warmed to room temperature and stirred overnight. The reaction was quenched with saturated NafiCOj solution and stirred vigorously. The organic -273layer was washed with saturated NaHCO3 solution and then dried over MgSO4- Filtration and solvent removal gave 2.1 g of 2-(chloromethyl)-4 ’-fluoro3,3',5-trimethyl[1,1’-biphenyl] as a clear oil.

TLC R- = 0.68 (50% Et-O/hexane, silica gel) PMA.

Ir NMR (270 MHz, CDC13) 7.22 (m, 2) 7.03 (m, 2) 6.90 (s, 1) 4.50 (s, 2) 2.48 (s, 3) 2.33 (s, 6) Without further purification the above chloride (2.1 g) was stirred with P(OC2Hg)3 (30 ml) at 150°C under argon atomosphere for 3 hours. The reaction was cooled to room temperature . and the excess P(OC2Hg)3 was removed by distillation. The crude product was purified by flash chromatography eluting with 70% EtOAc/hexane. Title phosphonate (2.40 g, 83%) was obtained as a clear oil.

TLC Rf = 0.37 (70% EtOAc/hexane, silica gel) PMA. IR(CHC13) 2992, 2928, 2909, 1501, 1474, 1455, 1443, 1392, 1245, 1239, -1 cm . 25 ^H NMR (270 MHz, CDC13) δ 7.15 (m, 2) 7.00 (m, 2) 6.83 (s, 1) 3.83 (m, 4) 30 3.22 (d, 2, J=22 2.47 (s, 3) 2.29 (s, 6) 1.16 (t, 6, J=7. 274Mass spec (CI) m/e 365 (M+H)+ C. [[4’-Fluoro-3,3’,5-trimethyl[ 1,1 ‘ bipheny1j-2-yl]methyl]phosphonic acid, monoethyl ester_ Part B phosphonate diester (2.40 g, 6.59 mmol) was stirred in 30 ml of dioxane at room temperature. To this dioxane solution was added IN LiOH (9.9 ml) and the reaction was warmed to a reflux. Additional IN LiOH (9.9 ml) was added at each of the IS hour and 44 hour time points.

After 55 hours at reflux the reaction was cooled to room temperature and the dioxane was removed on the rotavap. The resulting aqueous solution was diluted with FL^O and extracted 2 times with Et2O to remove any remaining diester. The aqueous layer was then cooled in an ice bath and acidified to pH*l with 6N HCI. The milky white solution was extracted 3 times with EtOAc, the EtOAc extract was dried over MgSO^, filtered, and the solvent was removed to give 1.89 g, 85% yield of a clear oil.

TLC Rf = 0.26 (9/0.5/0.5, CH2Cl2/MeOH/AcOH, silica gel) PMA.

IR (CHC13) 3029, 3023, 3005, 2983, 2925, 1710, 1605, 1500, 1234, 1042, 988 cm1.

XH NMR (270 MHz, CDC13) 11.07 (s, 1) 7.05 (m, 2) 6.95 (m, 2) 6.80 (s, 1) 3.71 (dq, , 2, J=7.15 Hz, 3.13 (d, 2, J=23.0j 2.38 (s, 3) 2.27 (s, 6) . 1.13 (t, 3,· J=7.2 HZ) Mass Spec (CI) m/e 337 (M+H)+ .

D. 4-[Ethoxy[[4'-fluoro-3,3', 5-trimethyl[1,1*-biphenyl]-2-yl]methyl]phcsphinvl]-3-oxobutanoic acid, methyl ester A 50 ml CHjClj solution of Part C half acid 10 (1.85 g, 5.50 mmol) under argon atmosphere was stirred with (yy)2NSi(CHj)3 (1.60 g, 11.0 mmol) at room temperature for 1 hour 15 minutes. The CHjClj was removed from the reaction mixture and the resulting yellow oil was azeotroped once with benzene and placed under high vacuum for 20 minutes. This oil under argon atmosphere was dissolved in 50 ml of dry cycy and cooled to 0°C.. Two drops of dry DMF were added to the cooled solution followed by the dropwise addition of oxalyl chloride (0.768 g, 6.06 mmol):gas evolution was observed. The reaction was stirred at 0°C for 20 minutes, warmed to room temperature and stirred for an additional 1 hour 40 minutes; the reaction turned deep burgundy. The CH2C12 was removed from the reaction and the resulting oil was azeotroped 2 times with dry benzene then placed under high vacuum for 1 hour.

The dianion of methylacetoacetate was prepared as described in Example 57 Part E [methylacetoacetate (0.830 g, 7.16 mmol); NaH (0.230 g oil disp., 7.88 mmol); n-BuLi (2.64 ml of 2.5 M solution in hexane, 6.59 mmol); 20 ml of THF]. -276The above prepared phosphonochloridate in 10 ml of dry THF cooled to -78°C was added via cannula over 20 minutes to the dianion solution cooled to -78°C. After stirring for 40 minutes at -78°C, the reaction was quenched at -78°C with saturated NE^Cl solution, and warmed to room temperature; the reaction mixture was diluted with in order to dissolve solids and the THF was removed on the rotavap. The resulting mixture was extracted 3 times with EtOAc. The EtOAc 'extract was washed once with saturated NaHCO3, once with brine, dried over MgS04 and filtered to give 2.6 g of crude orange oil after solvent removal. The crude product was purified by flash chromatography eluting with 75% EtOAc/hexane. The Part D ketone (0.43 g, 23%) was obtained as an orange foam.

TLC Rf=0.32 (50% acetone/hexane, silica gel), PMA. IR (KBr) 2952, 2925, 1739, 1718, 1654, 1529, 1503, 1472, 1234, NMR (270 δ 7.20-6.70 4.00-3.70 3.70&3.55 3.35 3.35 2.92 2.45&2.3S 2.25 1.15&0.95 Mass Spec (CI) m/e 435 (M+H)+ 1206, 1166, 1119, 1035 cm . MHz, CDC13) (aromatic H’s, 5) (m, 2) (2 s’s, 3) (m, 2) (d, 2, J=15 Hz) (m, 1) (2 s’s, 3) (s, 6) t’s, 3, J=7.0 Hz) -277Ε. 4- [Ethoxy[ [4' -fluoro-3,3 ’, 5-trimethyl[1,1' -biphenyl ] -2-yl ] methyl ] phosphinyl ] 3-hydroxybutanoic acid, methvl ester Solid NaBH4 (0.035 g, 0.92 mmol) was added to a 5 ml TEF solution of the Part D ketone (0.40 g, 0.92 mmol) under argon atmosphere. Methanol (0.30 ml) was added to the TEF solution at room temperature. After 1 hour at room temperature, the reaction was quenched with acetone followed by the addition of 0.4 g of CC-4 silica gel. The reaction mixture was filtered and the solvent was removed. The reaction product still retained some ketone starting material; therefore, the above reaction product was resubjected to the identical reduction conditions described above; however, CO2 (g) was bubbled through the solution prior to the addition of the NaBH4- Workup as before gave 0.250 g of a yellow oil which was purified by flash chromatography eluting with EtOAc. Pure title alcohol was obtained as a clear oil.

TLC Rf=0.26 (50% acetone/hexane, NMR'(270 MEz, CDC13) δ 7.10 (m, 2) 7.00 (m, 2) 6.85 (s, 1) 4.28&4.03 (2 m’s, 1) 4.10-3.70 (m, 2) 3.67 (s, 3) 3.33 (m, 2) • 2.47 (s, 3) 2.40 (m, 2) 2.30 (s, 6) ' 30 -2781.63 (m, 2) 1.17 (t, 3, J=6.6 Hz) F. 4- [ [[4’-Fluoro-3,3',5-trimethyl[1,1’biphenyl ] -2-yl lmethyl ] hydroxyphosphinyl ] 3-hydroxybutanoic acid, dilithium salt Part E diester (0.110 g, 0.252 mmol) in dry cycy (5.5 ml) under argon atmosphere was cooled to 0°C and treated with collidine (0.046 g, 0.38 mmol) followed by dropwise addition of trimethylsilyl iodide (TMSI) (0.182 g, 0.88 nmol). The reaction was stirred at 0°C for 2 hours then warmed, to room temperature. After 24 hours an additional aliquot of both collidine (0.023 g) and TMSI (0.091 g) was added. After stirring for 48 hours at room temperature, the cycy was removed, and 6 ml of dioxane was added to the oil followed by 1.7 ml of IN LiOH. This mixture was refluxed for 16 hours, cooled to room temperature and the dioxane was removed to leave an orange gum. The gum was dissolved in yo and filtered through sintered glass to remove a solid. The filtrate was lyophilized to give an off-white lyophilate which was purified on a 1.5 cm x 15 cm column of HP-20. The column was eluted first with 150 ml of yo then with 50% MeOH/yo. Product fractions were lyophilized to give title compound in the form of a white lyophilate (88 mg, 80%) TLC Rf=0.38 (7:2:1 n-PrOH/NyOH/y 0, silica gel), PMA.

IR (KBr) 3700-3100 (br), 2923, 1591, 1501, 1234, -27910 1147 ca 1. Ή NMR (270 MEz, d2o) 7.20-7.00 (m, 4) 6.82 (s, 1) 3.76 (m, 1) 3.11 (m, 2) 2.35 (s, 3) 2.22 (s, 3) 2.21 (s, 3) 2.05 (m, 2) 1.16 (dd, 2, J= Mass Spec (FAB) m/e 407 (M+H) + .

Anal Calcd for C20^22^°5Rlil2*0’S0 H20: H, 5.65; F, 4.52; Found: C, 57.11; H, 6.63; F, 4.44; C, 57.11; P. 7.36 P, 7.70 Example 59 (S)-4- [ [ [1-(4-Fluorophenyl)-3-methyl-2-naphthalenyl ] ethynyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dili~Ph-ium salt_ A. l-Methoxy-2-naphthalene carboxylic acid Reference: J. Organomet. Chem., 20 (1969) p. 251-252.n-BuLi (208.60 mmol, 83.44 ml of a 2.5 M solution in hexane, Aldrich) was stirred under argon in 42 ml of dry cyclohexane. This solution was cooled to 0eC and treated dropwise (10 min. ) with distilled tetramethylethylenediamine (TMEDA) (208.6 mmol, 24.24 g, 31.48 ml). The resulting slurry was stirred at 0°C for 30 minutes, then treated dropwise (20 minutes) with a solution of 1-methoxynaphthalene (208.60 mmol, 33 g, 30.28 mi ) (Aldrich Co., used without further purification) in 84 ml of dry cyclohexane. The -280resulting bright red homogeneous reaction mixture was warmed to room temperature and stirred for 2 hours. The reaction mixture was cooled to 0°C and added portionwise over 30 minutes via cannula to a -78°C solution of dry Et2O (250 ml) saturated with CO2 (g) (CO2 pellets sublimed through drying tube containing SiO2, bubbled into dry Et20 at -78°C). The resulting white slurry was warmed to ~0° over 45 minutes and then treated with 450 ml of 5% HCl (agueous). The Et2O layer was separated and the aqueous layer extracted three times with Et^O.

The organic extracts were combined and extracted with 3 x 150 ml saturated NaHCO3 (aqueous). The aqueous layer was filtered through a sintered glass funnel to remove insolubles and the filtrate was cooled to 0eC and acidified slowly with concentrated HCl until pE=l. The resulting precipitate was filtered, azeotroped with 2 x 150 ml of toluene, dried under high vacuum at 50°C for 5 hours to afford 32.52 g (0.161 mol, 77% yield) of the 1-methoxy-2-naphthalene carboxylic acid as an off-white powder, m.p. 118-121.5°C.

TLC: Silica gel, Rf=0.35 94:5:1/CH2C12:MeOH ^H NMR: (270 MHz, CDClg) consistent 13 C NMR: (67.8 MEz, CDC13) consistent Mass Spec: CI m/e 203*(M+H)+ IR: KBr consistent.

B. N-(2-Hydroxy-Γ, 1-dimethylethyl )-1methoxy-2-naphthalenecarboxamide The 1-methoxy-2-naphthalene carboxylic acid (155.22 mmol, 31.4 g) was stirred under argon in 155 ml of dry CH2C12. The solution was then -281treated with SOCy (310.44 mmol, 36.94 g, 22.65 ml). The reaction mixture was stirred at room temperature for 45 minutes then heated to reflux in a 55°C oil bath for 45 minutes. The reaction mixture was cooled to room temperature and treated with additional amounts (18.47 g, 11.32 ml) of thionyl chloride and again heated to reflux for 45 minutes. The reaction mixture was cooled to room temperature, the excess SOCy and cycy removed via rotary evaporation at 35°C (venting to argon atmosphere) and the resulting mustard yellow solid dissolved under argon in 155 ml dry cycy. This solution was transferred via cannula to an addition funnel and added dropwise (40 minutes) to a solution of 2-amino-2-methyl propanol (310.44 mmol, 27.67 g) in 155 ml dry cycy which had been stirring under argon at.0°C. The resulting reaction mixture was warmed to room temperature and stirred for 18 hours. The reaction mixture was then filtered, the precipitate washed with . cycy, the filtrate evaporated in vacuo. The residue was redissolved in 350 ml EtOAc and washed with 1 x 250 ml yo, 1 x 250 ml 5% HCl, 1 x 250 ml 5% NaOH and 1 x 250 ml brine. The aqueous extracts were each back-extracted once with EtOAc. The organic extracts were combined, dried over MgSO^, filtered, and evaporated in vacuo to afford an orange oil which was azeotroped with 250 ml toluene and pumped under high vacuum at 55°C for 8 hours to afford 38.2 g (139.76 mmol, 90% yield) of the title naphthalamide as a light yellow solid. -282TLC: Silica gel, Rf = 0.65 100% EtOAc NMR (270 MHz, CDC13) 8.19 (s, br, IH) 8.14 (m, IH) 8.03 (d, IH, J=8.7 Hz) 7.83 (m, 1H) 7.66 (d, IB, J=8.7 Hz) 7.55 (m, 2H) 4.00 (s, 3H) 3.74 (s, 2H) 1.47 (s, 6H) Mass Spec: CI m/e 274 (M+H)+ IR: (CHC13 solution) 3365, 3063, 3024, 3005, 2971, 2938, 2873, 1641, 1597, 1540, 1456, 1446, 1387, 1371, 1344, 1291, 1256, 1238, 1223, 1210, 1199, 1079,.981, 833 cm1. 1183, 1168, 1145, C. 4,5-Dihydro-2- (l-methoxy-2-naphthalenyl) 4,4-dimethyloxazole_ The Part B naphthalamide (139 mmol, 38.2 g) was stirred under argon and cooled to 0°C as thionyl chi ητ-i dg (0.556 mol, 66.15 g, 40.56 ml) was added dropwise (15 minutes). The resulting dark brown oil was stirred at room temperature for 45 minutes. Dry Et^O (500 ml) was added, and the reaction mixture was stirred mechanically for 2.5 hours. The resulting yellow crystalline precipitate was filtered, washed with E^O and then suspended in 250 ml Et^O. The suspension was cooled to 0°C and basified with *200 ml 10% NaOH.

The aqueous layer was extracted 3 times with Et2O and once with EtOAc. The organic extracts were 2835 combined, washed once with brine, concentrated, dried over MgS04 and filtered. The filtrate was azeotroped with toluene in vacuo and the residue pumped under high vacuum at 55°C for 8 hours to afford 32.10 g (0.126 mol, 90% yield) of the title oxazoline as a golden powder.

TLC: Silica gel Rf=0.37 50% EtOAC NMR: (270 MHz, CDClj) δ 8.25 (m, IH) 7.84 (d, IH, J=8.7 Hz) 7.84 (m, IH) 7.60 (d, IH, J=8.7 HZ) 7.54 (m, 2H) 4.19 (s, 2Ξ) 4.04 (s, 3H) 1.46 (s, 6Ξ) Mass Spec: CI m/e 256 (M+H)+ IR: 2969, 2935, 2896, 1642, 1465, 1447, 1386, 1372, 1349, 1255, 1109, 1074, 991 cm’1.

D. 2- [1- (4-Fluorophenyl) -2-naphthalenylf ] 4,5-dihydro-4,4-dimethyloxazole_ The Part C oxazoline (117.52 mmol, 30.0 g) was stirred under argon in 352.5 ml of dry THF. This solution was warmed to 45°C in an oil bath. The heat source was removed and a 2M solution of 4-fluorophenyl magnesium bromide in EtjO (Aldrich) (158.65 mmol, 79.33 ml) was added dropwise (30 minutes) at a rate sufficient to maintain· the reaction temperature at *45 °C. After addition was complete, the reaction temperature was maintained at 45°C as the reaction mixture was stirred for 18 hours. The reaction mixture was cooled to 0°C and 284 quenched with 200 ml saturated NH^Cl (aqueous), diluted with 200 ml E^O and 200 ml EtOAc. The aqueous layer was extracted 4 times with EtOAc.

The organic extracts were combined, concentrated, dried over MgSO4 and filtered. The filtrate was evaporated in vacuo to afford 39 g of a dark golden solid. The product was purified via flash chromatography (95 mm diameter column, 7" Merck silica gel, 25% EtOAc/hexane eluent, 2/min flow rate) to afford 30.42 g (95.25 mmol, 81% yield) of the title 4-fluorophenyl substituted naphthalene as a pale yellow solid, m.p. 94-96°C. Also obtained was 3.38 g (10.58 mmol, 9%) of slightly impure product.

TLC: silica gel Rf=0.45 50% EtOAc/hexane NMR: (270 MHz, CDC13) δ 7.93-7.13 (aromatic, 10H) 3.77 (s, 2H) 1.27 (s, 6H) Mass Spec: CI m/e 320 (M+H)+ IR:(KBr) 3060, 2966, 2927, 2884, 1667, 1603, 1508, 1462, 1383, 1354, 1335, 1293, 1219, 1185, 1160, 1119, 1083, 978, 842, 830 cm1.

E. 2-(1-(4-Fluorophenyl)-3-methyl-2naphthalenyl ]-4,5-dihydro-4,4dimethyloxazole_ The Fart D l-4-fluorophenyl-2-oxazolinenaphthyl compound (87.67 mmol, 28 g) was stirred under argon in 585 ml dry Et^O. This solution was cooled to -25°C and treated dropwise (1 hour) with n-BuLi (140.27 mmol, 56.1 ml of a 2.5 M solution in hexane). The reaction mixture transformed -285during this hour long addition from a yellow homogeneous solution to a dark red/orange solution to an orange/green solution with a precipitate.

The reaction mixture was stirred at -25°C for an additional 2.5 hours and was then treated with iodomethane (263.01 mmol, 37.33 g, 16.4 ml) added dropwise over 15 minutes. The resulting dark burgundy solution was stirred at -25°C for 4.5 hours, warmed to 0°C and stirred for 16 hours and finally warmed to room temperature and stirred for 7 hours. The resulting yellow transparent solution was quenched with 500 ml of ice cold brine. The aqueous layer was extracted 4 times with EtOAc. The organic extracts were combined, concentrated, dried over MgS04 and filtered through Florisil (300 ml glass sintered funnel 2/3 full). The Florisil was washed with The filtrate was concentrated, azeotroped with toluene and evaporated in vacuo and pumped under high vacuum at 55°C for 3 hours to afford 30.32 g (90.94 mmol, 100% yield) of the title methylated naphthalene as a yellow solid.

TLC: Silica gel Rf=0.50 50% EtOAc/hexane NMR: (270 MHz, CDCl3) δ 7.79-7.07 (aromatic, 9E) 3.80 (s, 2Ξ) 2.54 (S, 3H) 1.13 (s, 6H) Mass Spec: CI m/e 334 (M+H)+ IR: (CHC13 solution) 3013, 2967, 2931, 2895, 2870, 1667, 1605, 1513, 1497, 1461, 1299, 1280, 1235, 1190, 1158, 1041, 965, 841 cm"1. -286 » F. 2-[1-(4-Fluorophenyl)-3-methyl-2naphthalenyl ]-4,5-dihydro-3, 4,4trimethvloxazolium iodide_ The Part E oxazoline (87.67 mmol, 29.23 g) was stirred under argon in 140.28 ml nitromethane. This solution was treated in one portion with iodomethane (0.789 mol, 112 g, 49.2 ml). The resulting brown reaction mixture was heated in a 60°C oil bath for 1 hour 20 minutes in the absence of light. The iodomethane was removed via simple distillation. The nitromethane was removed via rotary evaporation followed by pumping under high vacuum for 45 minutes. ’ The resulting burgundy solid was stirred mechanically in 250 ml dry Eyo for 1 hour. The red filtrate was decanted and the solid was again triturated from Eyo as above. The resulting yellow solid was filtered and pumped under high vacuum for 4 hours (in the absence of light) to afford the title oxazolinium iodide 44 g ("92.63 mmol, 100% yield) as -a mustard yellow solid. The title compound was stored in the absence of light at -30 eC for 18 hours and was then used directly in the preparation of the Part G compound.

TLC:Silica gel Rf=0.30 10% MeOH/Cycy.

G. l-(4-Fluorophenyl)-3-methyl-2naphthalenecarboxaldehyde_ The Part F oxazolinium iodide (87.67 mmol, 41.67 g) was stirred under argon in 526 ml of dry THF and 210 ml absolute EtOH (dried over 4A molecular sieves). This solution/suspension was cooled to -15°C and treated protionwise with NaBy 287over a one hour period. After addition was complete, the reaction solution was stirred at -10°C to -15 °C for 2.5 hours. Then, the solution was diluted with 210 ml absolute EtOH and the reaction mixture stirred at -15°C as 2N HCl (438 ml, 876 mmol) was added dropwise over 45 minutes (add very slowly initially). After addition was complete, the reaction mixture was warmed to room temperature and stirred for 4 hours. Then, dilution with 500 ml E^O was followed by aqueous extraction with ΕΊ~,Ο. The organic extracts were, combined, concentrated, dried over MgSO^, filtered, concentrated, azeotroped with toluene (2 x 120 ml) and stripped in vacuo to afford 12.9 g, (48.81 mmol, 56% yield) of the title aldehyde as a pale yellow solid.

TLC: Silica gel Rf=0.66 50% EtOAc/hexane ^H NMR: (270 MHz, CDC13) δ 10.0 (s, IH) 7.83-7.18 (aromatic, 9H) 2.81 (s, 3H) Mass Spec: CI m/e 265 (M+H)+ IR: (CHC13 solution) 1685, 1512, 1422, 1237, 862 cm1.

H. 2-(2,2-Dibromoethenyl)-1-(4-fluorophenyl )-3 -methylnaphthalene_ The Part G aldehyde (11.35 mmol, 3.0 g) was stirred under argon in 113.5 ml dry C^C^. This solution was cooled to 0°C and then treated in one portion with triphenylphosphine (36.32 mmol, 9.53 g). The reaction mixture was stirred at 0° for 20 minutes and then treated dropwise (20 min) with a -288 solution of carbon tetrabromide (18.16 mmol, 6.02 g) in 41 ml dry CH2C12· The resulting dark orange solution became dark burgundy as it was stirred at 0°C for 1¾ hours. Then the reaction mixture was quenched with 150 ml saturated NaHCO3 (aqueous). The aqueous layer was extracted 4 times with CH2C12. The organic extracts were combined, concentrated in vacuo, washed once with brine, dried over MgS04 and filtered. The filtrate was preabsorbed onto Merck silica gel (*28 g) and then applied to a 50 mm diameter flash chromatography column containing 6 Merck silica gel and eluted with 7% EtOAc/hexane eluent, 2/min flow rate to afford 4.23 g of the title dibromo-olefin as a slightly impure pale yellow solid. Subsequent recrystallization from hexane afforded 3.68 g (8.77 mmol, 77% yield) of the title dibromo-olefin as a white powdery solid, m.p. = 134.5-135.5.

TLC: silica gel Rf=0.60 20% EtOAc/hexane XH NMR: (270 MHz, CDC13) δ 7.79-7.11 (aromatic olefinic, 10H) 2.48 (s, 3Ξ) Mass Spec: CI m/e 419/421/423 (M+H)+ IR: (CHC13 solution) 3016, 1604, 1512, 1496, 1234, 1220, 1208, 1158, 886, 858 cm1.

I. 2-Etfaynyl-l-{4-fluorophenyl)-3methylnaphthalene The Part H dibromo olefin (8.7 mmol, 3.69 g) was stirred under argon in 47.9 ml dry THF.

This solution was cooled to -78°C and then treated dropwise (15 min) with n-BuLi (17.4 mmol, 6.96 ml -289of a 2.5 M solution in hexane - Aldrich). The reaction mixture was stirred at -78°C for 1 hour and then was quenched with 40 ml saturated NH^Cl (aqueous). After wanning to 0°C, the reaction mixture was diluted with 40 ml of E^p and 40 ml of Et2O. The aqueous phase was extracted 2 times with Et^O and once with EtOAc. The organic extracts were combined, dried over MgSO^, filtered and the solvent evaporated in vacuo. Initial purification via flash chromatography (50 mm diameter column, 6 Merck silica.gel, 7% EtOAc/hexane eluent, 2’'/min flow rate) afforded 2.32 g of a green oil/solid. 270 NMR evidenced impure product. Repurification via flash chromatography (75 mm diameter column, 6" Merck silica gel, 1% EtOAc/hexane eluent, 2/min flow rate) afforded 2.11 g (8.11 mmol, 93% yield) of the title acetylene as a pale blue solid (pumped under high vacuum 8 hours) m.p. = 91.5-94.5.

TLC: Silica gel, PMA Rf = 0.56 20% EtOAc/hexane NMR: (270 MHz, CDC13) δ 7.77-7.13 (aromatic, 9H) 3.18 (s, IH) 2.62 (s, 3H) Mass Spec: CI m/e 260 M* IR: (C^C^ film) 3291, 1604, 1512, 1494, 1383, 1222, 1158, 1150, 1092, 884, 871, 853, 825 cm1.

J. (s)-3-[[(1,1-Dimethylethyl)diphenylsilyl] oxy] -4- [ [ [1-(4-fluorophenyl)-3methyl -2 -naphthalenyl ] ethynyl ] methoxypho sphinyl] butanoic acid, methyl ester -290The Example 25 di cyclohexyl amine salt (8.82 mmol, 5.57 g) was partitioned between a 1:1 . mixture of EtOAc/5% KHS04 (150 ml ea.) and shaken vigorously. The layers were separated and the EtOAc layer was washed with 2 x 100 ml fresh 5% KHS04· Finally, the organic phase was dried over MgSO4, filtered and the solvent removed in vacuo. The resulting residue was azeotroped with 2 x 120 ml benzene, evaporated and pumped under high vacuum for 2 hours to afford 4.33 g, 109% yield, of the phosphonate monoester as a viscous pale yellow oil. This oil was stirred under argon in 24.8 ml dry cycy and treated dropwise (8 minutes) with distilled diethyl trimethylsilylamine (17.64 mmol, 2.56 g, 3.34 ml). This solution was stirred at room temperature for 2 hours. Then, the volatiles were removed on the rotavap (vent to argon) and the resulting residue azeotroped with 1 x 60 ml dry benzene, evaporated in vacuo and pumped under high vacuum for 45 minutes. The residue was then stirred under argon in 24.8 ml of dry cycy. Two drops of DMF were added and the solution cooled to 0°C. Oxalyl chloride (10.58 mmol, 1.34 g, 0.923 ml) was added dropwise (10 min). The resulting amber solution was stirred at 0°C for 30 minutes, warmed to room temperature and stirred for 2 hours. The volatiles were removed, the residue azeotroped and pumped under high vacuum as above. Finally, the residue was stirred under argon in 27.7 ml dry THF. This solution was cooled to -78°C and treated dropwise (15 minutes) with a -78°C THF solution of the acetylenic anion -291formed and added to the phosphonochloridate as follows.

The Part I acetylene (5.19 mmol, 1.35 g) was stirred under argon in 27.7 ml of dry TEF and cooled to -78°C. This solution was treated dropwise (10 minutes) with n-3uLi (5.19 mmol, 2.08 ml of a 2.5 M solution in hexane). The resulting green solution was stirred at -78°C for 1.5 hours, warmed to 0°C for 15 minutes and recooled to -78°C. This solution was maintained at -78°C as it was transferred portionwise to an addition funnel and added dropwise to the -78°C THF solution of the phosphonochloridate formed above. After completion of addition, the reaction mixture was stirred at -78°C for 1 hour, then quenched with 50 ml saturated NH^Cl (aqueous) and warmed to 0eC. The reaction mixture was then diluted with 40 ml HjO and 40 ml Eyo. The aqueous layer was extracted with 4 x 50 ml Eyo. The organic extracts were combined, concentrated, dried over MgS04, filtered, and the solvent removed in vacuo. The product was isolated via flash chromatography (75 mm diameter column, 6 Merck silica gel, 5:4:1 hexane: EtOAc-.toluene eluent, 2/min flow rate) to afford 1.53 g (2.21 mmol 43% yield) of the title acetylenic phosphinate as a yellow foam. Also recovered 0.589 g of impure starting material.

TLC:Silica gel, PMA R£=0.26 5:4:1 0 ' Hexane:EtOAc: toluene -292NMR: (270 MHz, CDC13) δ 7.82-7.09 (aromatic, 19E). 4.52 (m, IH) 3.60&3.59 (2 x s, 3H) 3.36&3.31 (2 x d, 3H, J=11.5 Hz) 2.54&2.49 (2 x s, 3H) 2.87-2.73 (m, IH) 2.61-2.56 (m, IH) 2.39-2.22 (m, IH) 2.12-2.00 (m, IH) 1.02 (s, 9H) Mass Spec: CI m/e 693 (M+H)+ IR:(CHC13 solution) 3004, 2951, 2932, 2858, 2164, 1735, 1605, 1512, 1494, 1472, 1437, 1427, 1237, 1197, 1182, 1158, 1151, 1138, 1110, 1105, 1093, 1038, 1017, 951, 885, 834 cm1.

K. (S)-4-[[[1-(4-Fluorophenyl)-3-methyl2-naphthalenyl ] ethynyl ] methoxypho s phinyl]-3-hydroxybutanoic acid, methyl ester_ The Part J acetylenic phosphinate (0.866 mmol, 0.60 g) was stirred under argon in 10.5 ml dry THF and treated with glacial acetic acid (3.46 mmol, 0.208 g, 0.198 ml) followed by dropwise addition of tetrabutylammonium fluoride (2.60 mmol, 2.36 ml of a 1.1 M solution in THF). The reaction mixture was stirred at room temperature' for 24 hours, then quenched with 25 ml ice water and diluted with EtOAc. The aqueous layer was extracted 3 times with EtOAc. The organic extracts were combined, washed once with saturated 293NaHCO.j (aqueous) and once with brine, dried over MgS04, filtered and evaporated in vacuo. The product was purified via flash chromatography using a 30 mm diameter column; 35:1 Merck silica gel, 100% EtOAc eluent, 2‘'/min flow rate to afford 0.267 g (0.588 mmol, 68% yield) of the title β-hydroxyphosphinate as a pale yellow foam.

TLC:Silica gel, PMA Rf=0.28 100% EtOAc NMR: (270 MEz, CDCl3) δ 7.81-7.18 (aromatic, 9E) 4.38 (m, IH) 3.71 (s, 3E) 3.59&3.S8 (2 x d, 3E, J=12 Bz) 2.66&2.65 (2 x s, 3B) 2.62-2.52 (m, 2E) 2.19-1.92 (m, 2E) Mass Spec: CI m/e 455 (M+B)+ IR: (film) 3380 (broad), 3065, 3048, 2993, 2951, 2166, 1738, 1604, 1513, 1495, 1457, 1438, 1423, 1401, 1385, 1378, 1334, 1299, 1222, 1179, 1160, 1138, 1095, 1035, 951, 887, 836 cm1 L. (S)-4-[[[ 1-( 4-Fluorophenyl )-3-methyl-2naphthalenyl ] ethynyl ] hydroxyphosphinyl ] 3-hydroxybutanoic acid, dilithium salt The Part K diester (0.583 mmol, 0.265 g) was stirred under argon in 6 ml dioxane and treated with IN LiOH (1.75 mmol, 1.75 ml). The reaction mixture was heated in a 70°C oil bath for 45 minutes. The reaction.mixture was cooled to room temperature. The solvents were removed via rotary evaporation followed by pumping under high 294vacuum for 1 hour. The resulting white solid was dissolved in 4 ml of distilled yo and applied to an HP-20 chromatography column (2.5 cm x 17.0 cm, equilibrated with yo). The column was eluted with 250 ml yo followed by eluting with 45:55 MeOEyO. Fractions were collected every 1.3 m (5.10 ml). Product fractions were evaporated in vacuo at 35°C, lyophilized, and pumped under high vaccum over PjOj ^or ® hours to afford 0.237 g (0.541 mmol, 93% yield) of the title phosphinic acid dilithium salt as a white lyophilate.

TLC:Silica gel, PMA Rf=0.40 7:2:1 n-CyOE/NE^H/yO ^H NMR: (400 MHz, DjO) δ 7.88 (d, IH, J=8.43 Hz) 15 7.80 (s, IH) 7.58-7.29 (aromatic, 7H) 4.14-4.05 (m, IH) 2.61 (s, 3H) 2.43 (dd, IH, J=3.67, J=15.39) 20 2.21 (dd, IH, J=9.16, J=15.39) 1.84-1.67 (m, 2H) Mass Spec: FAB m/e 439 (M+2 Li)+ IR:(KBr) 3443-3260 (broad), 3066, 2164, 1594, 1512, 1495, 1434, 1222, 1183, 1160, 1071, 834 cm Anal Calcd for CjjE^gFOgPLij+0.66 moles yo M.W.=450.14: C, 61.38; H, 4.33; F, 4.22; P, 6.88 Found: C, 61.38; H, 4.07; F. 4.42; P, 6.80 -295Example 60 (E)-4-[[2-[1-(4-Fluorophenyl)-3-methyl-2-naphthalenyl ] ethenyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt A. [2-[1-(4-Fluorophenyl)-3-methyl-2naphthalenyl]-2-hydroxyethyl]phosphonic acid, dimethyl ester Dimethyl methyl phosphonate (24.21 mmol, 3.0 g, 2.62 ml) was stirred under argon in dry THF (47 ml). This ·solution was cooled to -78°C and then treated dropwise (15 min) with n-8uLi (22.70 mmol, 9.08 ml of a 2.5 M solution in hexane).

This reaction mixture was stirred at -78°C for 1.5 hours and then the resulting milky solution was treated dropwise (15 minutes) with a solution of the Example 59 Part G aldehyde (15.13 mmol, 4.0 g) in dry THF (14 ml). This reaction mixture was stirred at -78°C for 45 minutes. Finally, the reaction mixture was quenched with saturated NH^Cl (aqueous) (50 ml), warmed to room temperature, diluted with H20 (50 ml) and EtOAc (50 ml). The aqueous layer was extracted 4 times with EtOAc.

The organic extracts were combined, dried over MgS04, filtered, concentrated, azeotroped 2 times with toluene, evaporated in vacuo, and pumped under high vacuum to afford 5.90 g (15.13 mmol, 100% yield) of the title phosphonate as a yellow solid which was used directly in the preparation of Part B compound.

TLC:Silica gel, PMA Rf=0.37 50% acetone/hexane -296Β. (Ε)-[2-[1-(4-Fluorophenyl)-3-methyl-2naphthaleny1]ethenyl]phosphonic acid, dimethyl ester The Part A β-hydroxyphosphonate (14.16 mmol, 5.5 g) was stirred under argon in 66.5 ml of dry toluene. This solution was treated with paratoluene sulfonic acid monohydrate (TsOH-H^O) (3.54 mmol, 0.673 g). The reaction mixture was heated to reflux in a 135°C oil bath. The condensate was passed through a soxhlet containing dry 4A molecular sieves. After 16 hours at reflux additional TsOH-^O (2.12 mmol, 0.404 g) was added and the reaction mixture heated as above for an additional 8.5 hours. The reaction mixture was cooled to room temperature and diluted with 100 ml of EtOAC. The mixture was then washed with 100 ml of saturated NaHC03 (aqueous). The aqueous layer was extracted 4 times with EtOAc. The organic extracts were combined, dried over MgSO^, filtered and evaporated in vacuo to afford 4.22 g of crude vinyl phosphonate as a brown solid. The aqueous layer was acidified with 5% HCl and then extracted 3 times with EtOAc. The organic extracts were combined, dried over MgSO4, filtered and evaporated to afford 1.4 g (3.92 mmol") of the vinyl phosphonate monoester as a light brown solid. This solid was stirred under argon in trimethyl orthoformate (15 ml) and heated to reflux in a 120°C oil bath for 16 hours. The reaction mixture was cooled to room temperature. The excess trimethyl orthoformate was removed in vacuo and the residue combined with the 4.22 g of crude vinyl phosphonate (above). The product -297was purified via flash chromatography (75 mm diameter column, 6" Merck silica gel, 100% EtOAc eluent, 2/min flow rate) to afford 3.70 g (9.99 mmol, 71% yield) of the title vinyl phosphonate as a peach solid.

TLC:Silica gel, PMA Rf=0.48 100% EtOAc NMR:(270 MHz, CDClj) 7.79 (d, IE, J=8.4 Hz) 7.72 (s, IH) . 7.56-7.13 (m, 8H) .54 (dd, IE, J=17.93 Hz, J=20.6 Hz) 3.57 (d, 6H, J=ll Hz) 2.54 (s, 3H) Mass Spec: CI m/e 371 (M+H)+ IR:(CHClj solution) 3016, 2956, 2857, 1617, 1521, 1500, 1245, 1188, 1162, 1071, 1047, 834 cm’1.

C. (E)-[2-[1-(4-Fluorophenyl)-3-methy1-220 naphthalenyl]ethenyl]phosphonic acid, monomethyl ester_ The Part B vinyl phosphonate (9.72 mmol, 3.60 g) was stirred under argon in dioxane (23.5 ml) and treated with IN LiOH (23.32 mmol, 23.32 ml). The reaction mixture was heated in a 75°C oil bath for 1 hour. Then, the reaction mixture was cooled to room temperature and the solvents removed in vacuo. The resulting residue was diluted with 15 ml of yo, cooled to 0°C and acidified to pH=l with 5% HCl (aqueous). The aqueous layer was extracted 4 times with EtOAc.

The organic extracts were combined, dried over MgS04, filtered, concentrated, azeotroped 2 times -298with benzene and evaporated in vacuo to afford 3.38 g (9.48 mmol,. 98% yield) of the title phosphonate monoester as a peach solid.

TLC:Silica gel, PMA Rf=0.41 10:1:1 '5 CH2Cl2/MeOH/CH3CO2H NMR: (270 MHz, CDC13) δ 7.76 (d, IH, J=8.4 Hz) 7.68 (s, IH) 7.47-7.09 (m, 8Ξ) 5.61 (dd, 1H, , J=18.47 Hz, 3.48 (d, 3H, J=10.96 Hz) 2.52 (s, 3H) J=20.58 HZ) Mass Spec: FAB m/e 357 (M+H) IR: (CHC13 solution) 3025, 3008, 2951, 1614, 1605, 1511, 1494, 1235, 1210, 1188, 1158, 1050, 987, 833 cm1.

D. (E)-4-[[2-[l-(4-Fluoropheny]^-3-methyl-2naphthalenyl ] ethenyl ] methoxyphosphinyl ] 20 3-oxobutanoic acid, methyl ester_ The Part C phosphonate monoester (9.12 mmol, 3.29 g) was stirred under argon in dry CZ2CI2 (60 and treated dropwise (10 minutes) with trimethylsilyldiethyl amine (TMSDEA) (18.24 mmol, 2.65 g, 3.45 ml, distilled). The reaction mixture was stirred at room temperature for 1.5 hours. The volatiles were removed on the rotavap (vent to argon) and the residue pumped under high •vacuum 40 minutes. Then, the residue was stirred under argon in dry C^C^ (25 ml). This solution was cooled to 0°C, treated with 2 drops of dry DMF, followed by dropwise addition (15 minutes) of oxalyl chloride (10.94 mmol, 1.39 g, 0.955 mol). -299The reaction mixture was stirred at 0°C for 20 minutes then warmed to room temperature and stirred for 1 hour. The volatiles were removed and the residue pumped as above. Finally, the residue was stirred under argon in dry THF (25 ml), cooled to -78°C and maintained at -78°C as this solution was transferred via cannula to an addition funnel and added dropwise (20 minutes) to a -78°C THF solution of the dianjon of methyl acetoacetate. This dianion was generated in the following manner: NaH (13.22 mmol, 0.317 g, 0.397 g of 80% mineral oil dispersion) was washed once with pentane, dried under an argon stream, and then stirred under argon in dry THF (20 ml). This suspension was cooled to 0°C and treated dropwise (10 minutes) with a solution of methylacetoacetate (12.31 mmol, 1.43 g, 1.33 ml) in dry THF (10 ml). The resulting clear solution was stirred at 0eC for 20 minu+es and was then treated dropwise (10 minutes) with n-BuLi (11.40 mmol, 4.56 ml of a 2.5 M solution in hexane). The resulting yellow solution was stirred at 0°C for 45 minutes then cooled to -78°C and treated dropwise with the -78°C thf solution of the phosphonochloridate formed above. After the addition was complete, the reaction mixture was stirred at -78°C for 45 minutes. Then, the reaction was quenched with saturated NH4C1 (aqueous) (50 ml), warmed to room temperature, diluted with H2O (50 ml) and EtOAc (50 ml). The aqueous layer was extracted 3 times with NaHCO3 (aqueous) and once with CHjCl^ The organic extracts were combined, washed 3 times with saturated NaHCO3 (aqueous) and once with brine, . -300dried over MgS04, filtered and evaporated in vacuo to afford 4.0 g of a rust colored foam. Initial purification via flash chromatography (40 mm diameter column,. 20:1 Merck silica gel, 100% EtOAc eluent, 2/min flow rate) afforded 2.0 g of slightly impure title keto-phosphinate as an orange oil. Subsequent chromatography (30 mm diameter column, 25:1 Merck silica gel, 95% EtOAc/hexane eluent, 2/min flow rate) afforded 1.95 g (4.29 mmol 47% yield) of the title ketophosphinate as an orange foam.

TLC:Silica gel, PMA Rf=0.29 100% EtOAc NMR:(270 MHz, CDClj) δ 7.78-7.13 (aromatic, olefinic, 10H) 5.62 (dd, IH, J=17.93 Hz, J=25.84 Hz) 3.71 (s, 3H) 3.63 (s, 2H) 3.48 (d, 3H, J=11.6 Hz) 3.14&3.13 (2 x d, 2H, J=18.46 Hz) 2.44 (s, 3H) Mass Spec: CI m/e 455 (M+H)+ IR:(film) 1749, 1717, 1623, 1614, 1604, 1511, 1328, 1223, 1159, 1031, 834 cm1 E. (E)-4-[[2-[l-(4-Fluorophenyl)-3-methyl2-naphthalenyl]ethenyl]methoxyphosphinyl]-3-hydroxy-butanoic acid, methyl ester ____ The Part D ketophosphonate (2.82 mmol, 1.28 g) was stirred under argon in dry THF (12 ml).

This solution was cooled to 0°C and treated with NaBH4 (2.82 mmol, 0.107 g), followed by dropwise -301addition of methanol (2.45 ml, dried over 4A molecular sieves). The reaction mixture was stirred at 0°C for 1 hour, then quenched with 2.5 ml of acetone. 1.3 g of CC-4 silica gel (Mallinckrodt) were added and the reaction mixture was stirred as it was wanned to room temperature. Finally, the suspension was filtered through a fritted funnel, washed 2 times with EtOAc and 2 times with CHjClj. 11x0 was evaporated in vacuo to afford 1.3 g of an orange foam which crystallized upon addition of EtOAc. The product was purified via flash chromatography (30 mm diameter column 30:1 Merck silica gel, 3% MeOE/CH2Cl2 eluent, 2’’/min flow rate). Product fractions were combined, evaporated, and azeotroped one time with benzene to afford 0.653 g (1.43 mmol, 51% yield) of the title hydroxyphosphinate as a pale yellow solid. This pure product was triturated from 7:3 EtOAc/hexane to afford 0.516 g of the hydroxyphosphinate as a white solid, m.p.=132-134.5°C TLC:Silica gel, PMA Rf=0.38 4% MeOH/CH2Cl2 NMR:(270 MHz, CDC13) δ 7.79-7.16 (aromatic, olefinic, 10H) .59 (2 x dd, IH, J=17.94 Hz, J=24.27 Hz) 4.35&4.24 (2 x m, IH) · 3.70 (s, 3H) 3.49&3.47 (2 x d, 3H, J=ll Hz) 2.58-2.53 (m, 2H) 2.54&2.S3 (2 X s, 3H) 2.01-1.74 (m, 2H) Mass Spec:CI m/e 457 (M+H)+ -302IR:(KBr) 3422-3382, 1613, 1604, 1330, 1311, 1092, 1077, 3062, 3051, 2951, 2926, 2913, 1511, 1494, 1457, 1438, 1399, 1307, 1286, 1220, 1194, 1177, 1035, 883, 833 cm-1. 1738, 1373, 1160, F. (Ξ)-4-[[2-[1-(4-Fluorophenyl)-3-methyl2-naphthalenyl]ethenyl]hydroxyphosphinyl] -3 -hydroxy-butanoic acid, dilithium salt_ The Part E diester (1.1 mmol, 0.50 g) was stirred under argon in dioxane (10.45 ml) and treated with IN LiOH (3.3 mmol, 3.3 ml). The reaction mixture was heated in a 70°C oil bath for 45 minutes. The resulting white slurry was dissolved in *100 ml 9:1 H^O/MeOH and rotavapped to dryness at 35°C. The white solid was pumped under high vacuum for 1 hour, then redissolved in 100 ml 9:1 H^O/MeOH and rotavapped to a volume of *8 ml. This turbid solution was applied directly to an HP-20 chromatography column (17.5 cm x 2.5 cm, equilibrated with H^O) and eluted with 250 ml of H2O, followed by 45:55 MeOH/^O. Fractions were collected every 1.3 minutes (*10 ml).

Product fractions were combined, rotavapped at 35°C, redissolved in ^0, lyophilized 16 hours and pumped under high vacuum over B2°5 ^or 16 hours to afford 0.449 g, 1.02 mmol, 93% yield of the title dilithium salt as a white lyophilate.

TLC:Silica gel, PMA Rf=0.49 7:2:1 (n-C3H7OH/NH4OH/H2O) Ή NMR:(400 MHz, D20 ·) 7.73 (d, IH, J=8.06 Hz) 7.64 (s, IH) 7.43-7.39 (m, IH) 7.25-7.13 (m, 4H) 7.05-6.95 (m, 3H) 5.62 (dd, IH, J=17.96 Hz, J=21.2 Hz) 2.43 (s, 3H) 2.38 (dd, IH, J=4.03 Hz, J=15.39 Hz) 2.22 (dd, 1Ξ, J=9.16 Hz, J=15.39 Hz) 1.59-1.51 (m, 2H) Mass Spec:FAB m/e 429 (M+H)*, 435 (M+Li)*, 441 (M+2Li)* IR: (KBr) 3431 (br), 1603, 1593, 1511, 1494, 1423, 1221, 1158, 1050 cm1 Anal calcd for £23^0^5^½0,87 moles H20 M.W.= 455.94: C, 60.60; H, 4.80; F, 4.17; P, 6.79 Found: C, 60.60; H, 4.73; F, 4.24; P, 6.82 Example 61 (S)-4-[[2-[1-(4-Fluorophenyl)-3-methyl-2-naphthalenyl ] ethyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt_ A. (S)-3-([(l,l-Dimethylethyl)diphenylsilyl] oxy]-4-( [2-[1-(4-fluorophenyl )-3methy1-2-naphthalenyl ] ethynyl ] me thoxyphosphinyl jbutanoic acid, methyl ester The Example 59 Part J acetylenic phosphinate (0.974 mmol, 0.675 g) was dissolved in methanol (14.3 ml). Argon was bubbled through this solution for 10 minutes, then 10% Pd/c (0.270 g) was added and the reaction mixture was shaken -304on a Parr hydrogenator at 40 psi y for 24 hours. The reaction mixture was filtered through a celite pad, washed through with methanol, and the filtrate evaporated in vacuo to afford a white foam. The product was purified via flash chromatography (50 mm diameter column, 4.5" Merck silica gel, 70% EtOAc/hexane eluent, 2‘’/min flow rate) to afford 0.556 g (0.798 mmol, 82% yield) of the title saturated phosphinate as a white foam. Elution of the column with methanol afforded an additional 0.101 g, (0.145 mmol, 15%) of product. TLC:Silica gel, PMA y=0.24 60% EtOAc/hexane NMR: (270 MEz, CDClj) δ 7.78-7.14 (aromatic, 19H) 4.44 (m, IH) 3.61 (s, 3H) 3.3S&3.23 (2 x d, 3H, J=10.6 Hz) 2.92-2.83 (m, IH) 2.63-2.54 (m, 3H). 2.21-1.27 (m, 4H) 2.45&2.42 (2 X s, 3H) 1.00 (s, 9H) Mass Spec: CI m/e 697 (M+H)+ IR:(CHC1_ solution) 3028, 3019, 3007, 2997, 2953, 2933, 2859, 1735, 1510, 1497, 1472, 1463, 1439, 1428, 1378, 1364, 1314, 1236, 1197,. 1157, 1142, 1112, 1091, 1073, 1065, 1043, 823 cm"1. -305B. (S)-4-[[2-[1-(4-Fluorophenyl)-3 -methyl2- naphthalenyl ] ethyl ] methoxyphosphinyl ] 3- hydroxybutanoic acid, methyl ester The Part A silyl ether (0.775 mmol, 0.540 5 g) was stirred under argon in 9.45 ml of dry TEF and treated with glacial acetic acid (3.10 mmol, 0.186 g, 0.177 ml), followed by dropwise addition of tetrabutylammonium fluoride (2.33 mmol, 2.1 ml of a 1.1 M solution in THF). The reaction mixture 10 was stirred at room temperature for 16 hours. The reaction mixture was quenched with 30 ml of ice water and diluted with EtOAc. The aqueous layer was extracted 3 times with EtOAc. The organic extracts were combined, washed once with saturated 15 NaHCO3 (aqueous), one time with brine, dried over MgSO^, filtered and evaporated in vacuo. Initial purification via flash chromatography (40 mm diameter column, 6" Merck silica gel, 4% MeOH/CH^Cl^ eluent, 2/min flow rate afforded 0.40 20 g of a white solid. This solid was triturated from 100% hexane, filtered and pumped under high vacuum (8 hours) to afford 0.317 g (0.691 mmol, 89% yield) of the title hydroxyphosphinate as a white solid, m.p.=120-122°C.

TLC:Silica gel Rf=0.12 2% MeOH/CH2Cl2 ^H NMR:(270 MHz, CDC13) δ 7.76 (d, IH, J=7.9 Hz) 7.69 (s, IH) 7.42-7.16 (m, 7H) 4.4Σ&4.26 (2 x m, IH) 3.92&3.Θ4 (2 x d, IH, J=3.16 Hz) 3.72 (s, 3H) -306(2 x d, 3H, J=3.69 Hz) (m, 2Ξ) (s, 3H) (m, 2H) (m, 4H) m/e 459 (M+H)+ 3.S8&3.54 2.89-2.76 2.56 2.63-2.41 1.92-1.61 Mass Spec:CI IR: (KBr) 3428 (br), 3287 (br), 3064, 3050, 3017, 2989, 2952, 2921., 1737, 1603, 1510, 1497, 1458, 1438, 1234, 1221, 1191, 1175, 1159, 1042, 826 cm"1.

C. (S)-4-[[2-[1-(4-Fluorophenyl)-3-methyl2- naphthalenyl ] ethyl ] hydroxyphosphinyl ] 3- hydroxybutanoic acid, dilithium salt The Part B diester (0.687 mmol, 0.315 g) was stirred under argon in dioxane (6.9 ml). The solution was treated with IN LiOH (2.06 mmol, 2.06 ml). The reaction mixture was heated in a 70°C oil bath for 45 minutes. The reaction mixture was cooled to room temperature. The solvents were removed on the rotavap at 35°C and the resulting white solid pumped under high vacuum for 1 hour. Then, the solid was dissolved in *8 ml of distilled H^O and applied to an HP-20 chromatography column (16 cm x 2.5 cm equilibrated with ^0). The column was eluted with 250 ml of H^O followed by 45:55 MeOH/^O. Fractions were collected every 1.4 minutes (*10ml). Product fractions (37-47) were combined, evaporated on the rotavap at 35°C, lyophilized 16 hours, and pumped under high vacuum over ® hours to afford 0.286 g (0.647 mmol, 94% yield) of the title dilithium salt as a white lyophilate. -307TLC: silica gel, PMA Rf=0.42 7:2:1 (n-cyoE/Nyos/y o) NMR: (400 MEz, DjO) 7.82 (d, IH, J=8. 06 Hz) 7.76 (s, IH) 7.46-7.42 (m, IH) 7.30-7.25 (m, 3Ξ) 7.18-7.13 (m, 3H) 4.06 (m, IH) 2.72-2.66 (m, 2H) 2.54 (s, 3H) 2.34 (dd, IH, J=4 .4 Hz, J=15.22 Hz) 2.22 (dd, IH, J=8 .43 HZ, J=15.02 Hz) 1.59-1.51 (m, 2Ξ) 1.44-1.39 (m, 2H) Mass’ Spec: FAB m/e 443 (M+H) + IR:(KBr) 3451-3426 (br), 3151, 3124, 1620, 1593, 1509, 1439, 1422, 1403, 1218, 1159, 1050 cm1.

Anal Calcd for C25H22F°5I>I‘i2’0*60 moles yo M.W. =453.09: C, 60.96; H, 5.16; F, 4.19;'P, 6.83 Found: C, 60.96; H, 5.29; F, 4.12; P, 6.82 Example 62 4-[[3-[4'-Fluoro-3,3 *,5-trimethyl[1,1’-biphenyl]-2yl ] propyl ] hydroxyphosphinyl ] -3-hydroxybutanoic acid, dilithium salt_ A. 3- [4 ’ -Fluoro-3,3 ’5-trimethyl[1,1' biphenyl]-2-yl]-2-propenoic acid, ethyl ester___ Sodium hydride (4.96 mmol, 0.119 g, 0.149 g of an 80% mineral oil dispersion) was washed under argon once with hexane and dried under an argon 308stream. Then, the NaH was stirred under argon in dry THF (9.1 ml). This suspension was cooled to 0°C and treated dropwise (5 minutes) with a solution of triethylphosphonoacetate (4.96 mmol, 1.11 g, 0.983 ml) in dry THF (2.2 ml). The resulting clear solution was stirred at 0°C for 15 minutes, then warmed to room temperature and stirred for 30 minutes. Finally, a solution of Example 1 Part C aldehyde (4.13 mmol, 1.0 g) in dry THF (2.5 ml) was added dropwise (8 minutes). The reaction mixture was stirred at room temperature for 1 hour. The mixture was quenched with E^Q and the aqueous layer extracted 2 times with EtOAc and 2 times with Et2O. The organic extracts were . combined, washed once with brine, dried over MgSO^, filtered and evaporated in vacuo. The product was purified via flash chromatography (50 mm diameter column, 6 Merck silica gel, 6% EtOAc/hexane eluent, 2"/min flow rate) to afford 1.19 g (3.79 mmol, 92% yield) of the title vinylic ester as a pale yellow foam.

TLC:Silica gel, PMA R-=0.22 4% EtOAc/hexane NMR (270 MHz, , CDCl,) δ 7.64 (d, IH, J=16.35 Hz) 7.09-6.93 (m, 5H) 5.81 (d, IH, J=16.35 Hz) 4.17 (5/ 2Ξ, J=7.12 Hz) 2.42 (s, 3H) 2.33 (s, 3H) 2.28 (s, 3H) 1.25 (t, 3H, J=7.12 Hz) Mass Spec: CI m/e 313 (M+H)+ -309B. 4'-Fluoro-3,3 ’,5-trimethyl[1,1' biphenyl]-2-butanoic acid, ethyl ester_ The Part A vinylic ester (3.68 mmol, 1.15 5 g) was dissolved in absolute EtOH (36 ml). Argon was bubbled through the solution for 10 minutes. 10% Pd/C (230 mg) was added and ^(g) was bubbled through the solution for 10 minutes. The reaction mixture was stirred under an atmosphere of for 2 hours. The reaction mixture was diluted with EtOH and filtered through a· V Celite pad in a 60 ml fritted funnel. The Celite was washed with EtOH. The filtrate was evaporated in vacuo to afford 1.12 g (3.56 mmol, 97% yield) of the title saturated ester as a white solid.

TLC .-Silica gel, PMA RF=0.29 5% EtOAc/hexane Ή NMR (270 MHZ, CDC13) 7.09-6.97 (m, 4H) 6.84 4.06 (s, IH) (q, 2H, J=7.12 Hz) 2.90-2.84 (m, 2H) 2.37 (s, 3H) 2.30 (2 x s, 6Ξ) 2.32-2.27 (m, 2H) 1.20 (t, 3H, J=7.12 Hz) Mass Spec: CI m/e 315 (M+H)+ C. 4’-FluorO-3,3',5-trimethyl[1,1·biphenyl ] -2-propanol__· Lithium aluminum hydride (3.5 mmol, 0.133 g) was stirred under argon in dry Et^O (3.5 ml). This suspension was cooled to 0eC and treated dropwise (8 minutes) with a solution of the Part B -310ester (3.5 mmol, 1.1 g) in dry Et2O (3.5 ml). The reaction mixture was stirred at 0°C for 15 minutes, then warmed to room temperature and stirred for 45 minutes. The mixture was again cooled to 0°C and treated dropwise with 0.133 ml of E^O, followed by 0.133 ml of 15% NaOH and finally 0.399 ml of H20. The suspension was warmed to room temperature over 30 minutes. The resulting white powdery solid was filtered and washed with dry Et2O. The filtrate was concentrated, azeotroped once with benzene and stripped in vacuo to afford 0.950 g of alcohol which was purified via flash chromatography (50 mm diameter column, 6 Merck silica gel, 35% EtOAc/hexane eluent, 2'’/min flow rate) to afford 0.906 g (3.33 mmol, 95% yield) of the title alcohol as a colorless oil.

TLC:Silica gel, PMA R ^.=0.18 20% EtOAc/Eexane ^H NMR (270 δ 7.08-6.93 6.82 3.45-3.40 2.60-2.54 2.34 2.28 1.63-1.52 Mass Spec: CI m/e 273 (M+H)+ D. 2-(3-Bromopropy1)-4’-fluoro-3,3’,5trimethyl Γ1,1' -biphenyl 1__ A solution of triphenylphosphine (10.1 mmol, 2.65 g) in dry THF (27.5 ml) was cooled to 0°C and treated dropwise with a solution of carbon MHz, CDC13 ) (nt, 4H) (s, IH) (m, 2H) (m, 2H) (s, 3H) (2 x s, 6H) im. 2H) -311tetrabromide (10.71 nmol, 3.55 g) in dry THF (5.5 ml). The resulting yellow/white slurry was stirred at 0°C for 2 hours. The complex was treated dropwise with a solution of the Part C alcohol (4.04 mmol, 1.1 g) in dry THF (8.2 ml). The reaction mixture was stirred at 0°C for 1 hour, then warmed to room temperature and stirred 16 hours. The reaction mixture was diluted with Eyo, filtered through a fritted funnel and the precipitate washed with Eyo. The filtrate was washed once with brine, dried over MgS04, filtered, and evaporated in vacuo. The product was purified via flash chromatography (50 mm diameter, 6" Merck silica gel, 2% EtOAc/hexane eluent, 2"/min flow rate) to afford 1.35 g (4.05 mmol, 100% yield) of the title bromide as a pale yellow oil.

^H NMR (270 MHZ , CDClj) δ 7.07-6.99 (m, 4Ξ) • 6.82 (s, IH) 3.22 (m, 2H) 2.69-2.63 (m, 2H) 2.36 (s, 3Ξ) 2.30 (s, 3H) 2.28 (s, 3H) 1.90-1.80 (m, 2H) Mas-s Spec: CI m/e 235 (M+H) 312E. [3-[4'-Fluoro-3,3’ ,5-trimethyl[1,1’biphenyl]-2-yl]propyl]phosphoni c acid, dimethyl ester__ The Part D bromide (3.88 mmol, 1.3 g) was stirred under argon in trimethylphosphite (38.8 ml). The reaction mixture was heated to reflux in a 135°C oil bath for 36 hours. The excess (CH3O)3P was removed via short path distillation and the residue pumped under high vacuum at 100°C for 1 hour. The resulting yellow oil was subjected to flash chromatography purification (50 mm diameter column, 6" Merck silica gel, 85% EtOAc/hexane eluent, 2/min flow rate) to afford 1.13 g (3.10 mmol, 80% yield) of the title dimethylphosphonate as a colorless oil.

NMR (270 MHz , cdci3) δ 7.08-6.97 (m, 4H) 6.81 (s, IH) 3.65 (d, 6Ξ, J=ll Ez) 2.63-2.56 (m, 2H) • 2.34 (s, 3H) 2.30 (2 x s, 3H) 2.28 (s, 3H) 1.68-1.50 (m, 4Ξ) Mass Spec: CI m/e 365 (M+H) F. [3-[4'-Fluoro-3,3’,5-trimethyl[1,1'biphenyl]-2-yl]propyl]phosphonic acid, monomethvl ester_ The Part E phosphonate (3.43 mmol, 1.25 g) was stirred under argon in dioxane (8.23 ml).

This solution was treated with IN LiOH (5.15 mmol, -3135 .15 ml) and heated in a 95°C oil bath. After 1 hour, an additional 3.43 mmol of Li'OH were added and the reaction mixture again heated to 95°C for 3.5 hours. The reaction mixture was cooled to room temperature. The solvents were removed in vacuo. The white solid residue was diluted with 25 ml of ^0, the slurry cooled to 0°C and acidified to pH=l with 5% HCl (aqueous). The aqueous layer was extracted 4 times with EtOAc.

The organic extracts were combined, dried over MgSO^, filtered, and the filtrate concentrated.

The residue was azeotroped 2 times with benzene and the resulting viscous oil pumped under high vacuum for 4 hours to afford 1.18 g (3.37 mmol, 98% yield) of the phosphonate mono-methyl ester as a yellow oil.

TLC:Silica gel, PMA, Rf=0.46 10:1:1 NMR (270 MHZ, CDCl-) δ 7.06-6.95 (m, 4H) 6.81 (s, IH) 3.56 (d, 3H,. J=ll Hz) 2.62-2.53 (m, 2H) 2.32 (s, 3H) 2.27 (2 x s, 6H) 1.69-1.48 (m, 4H) Mass Spec: FAB m/e 351 (M+H) G. 4-[[3-[4’-Fluoro-3,3’,5-trimethyl[1., 1’biphenyl ] -2-yl ] propyl ] methoxyphosphinyl ] 3-oxobutanoic acid, methyl ester_ The Part F phosphonate monoester (3.22 mmol, 1.13 g) was stirred under argon in dry -314a CHjC^ (12.9 ml). This solution was treated dropwise (8 minutes) with TMSDEA (6.44 mmol, 0.918 g, 1.20 ml freshly distilled). This solution was stirred at room temperature for 1.5 hours.. The volaties were removed in vacuo (venting to argon). The residue was azeotroped once with 70 ml of dry benzene and evaporated in vacuo (venting to argon). Finally, the residue was pumped under high vacuum for 50 minutes. Then, the residue was stirred under argon in dry 0Ξ^12 (12.9 ml). Two drops of dry DMF were added and the solution cooled to 0°C and treated dropwise (8 minutes) with oxalyl chloride (3.70 mmol, 0.470 g, 0.323 ml). This reaction mixture was stirred at 0eC for 20 minutes, then warmed to room temperature and stirred for 1-3/4 hours. The volatiles were removed, the residue azeotroped and pumped under high vacuum as above. The rust colored oil was then stirred under argon in dry THF (9.0 ml).

This solution was cooled to -78°C and maintained at -78°G as it was added dropwise (20 minutes) to a -78°C THF solution of the dianion of methylacetoacetate generated in the following manner: Sodium hydride (4.85 mmol, 0.116 g, 0.145 g of an 80% mineral oil dispersion) was washed once with hexane and dried under a stream of argon. The solid was then stirred under argon in dry THF (7.1 ml) and this suspension was cooled to 0°C. A solution of methyl acetoacetate (4.36 mmol, 0.506 g, 0.471 ml) in dry THF (3.6 ml) was added dropwise (8 minutes) and the resulting clear · solution stirred at 0°C for 25 minutes. Then, the reaction mixture was treated dropwise (10 minutes) -315with n-BuLi (4.04 mmol, 1.62 ml of a 2.5 M solution in hexane, Aldrich). The resulitng yellow solution was stirred at 0°C for 35 minutes, then cooled to -78°C and treated dropwise (20 min) with the -78°C THF solution of the phosphonochloridate formed above. The reaction mixture was stirred at -78°C for 1 hour, then quenched with saturated NH^Cl (aqueous) (45 ml) and warmed to room temperature. The mixture was diluted with yo (45 ml) and EtOAc. The aqueous layer was extracted 4 times with EtOAc. The organic extracts were combined, washed .once with saturated NaHCOj (aqueous) and once with brine, dried over MgSO^, filtered and evaporated in vacuo to afford 2.0 g of a rust oil. The product was isolated via flash chromatography (40 mm diameter column, 35:1) Merck silica gel, 100% EtOAc to 5% MeOH/cycy eluent, 2/min flow rate to afford 0.220 g (0.491 mmol, 15% yield) of the title β-ketophosphinate as a rust oil.

TLC: Silica gel, PMA Rf=0.19 100% EtOAc NMR (270 MHz, CDClj) δ 7.08-6.98 (m, 4Ξ) 6.81 (s, IH) 3.73 (s, 3H) 3.65 (d, 3H, J=ll HZ) 3.64 (s, 2H) 3.10 (dd, 2H, J=5.27 Hz, J=17.41 Hz) 2.67-2.57 (m, 2H) 2.35 (s, 3H) 2.30&2.28 (2 a : s, 3Ξ) 2.29 (s, 3H) -3161.72-1.56 (m, 4H) Mass Spec: CI m/e 449 (M+H)+ H. 4-[[3-[4’-Fluoro-3,3’,5-trimethyl[1,1’bipheny1]-2-yllpropyl]methoxyphosphinyl]3-hydroxybutanoic acid, methyl ester_ The Part G β-ketophosphinate (0.223 mmol, 0.10 g) was stirred under argon in dry THF (1.9 ml). This solution was cooled to 0°C and then treated with NaBH^ (0.223 mmol, 0.008 g), followed by dropwise addition of MeOH (0.194 ml, dried over 4A mol sieves). The reaction mixture was stirred at 0°C for 1 hour, then quenched with acetone (0.194 ml) followed by 0.10 g of CC-4 silica gel (Mallinckrodt). The suspension was stirred as it was warmed to room temperature, then filtered through a fritted funnel. The silica was washed with EtOAc. The filtrate was evaporated in vacuo to afford 0.108 g of a golden oil. Two reaction products were isolated via flash chromatography (10 mm diameter column, 35:1 Merck silica gel, 4% MeOH/CH2Cl2 eluent, 2’’/min flow rate). The desired title β-hydroxyphosphinate was obtained in 56% yield (0.058 g, 0.129 mmol) as a pale yellow oil. Also obtained were 0.019 g (0.043 mmol 20% yield) of the 1,3-butandiol phosphinate.

TLC:Silica gel PMA Rf =0.19 3.5% MeOH/CH2Cl2 NMR (270 MHz, CDC13) δ 7.08-6.98 (m, 4H) 6.82 (s, IH) 4.44&4.32 (2 x m, IH) 3.63 &3.6Σ (2 X d, 3H, J=10.55 Hz) 3.70 (s, 3Ξ) 2.65-2.50 (m, 4Ξ) 2.35 (s, 3H) 2.30 (2 x s, 3H) 2.29 (s, 3H) 1.89-1.76 (m, 2Ξ) 1.71-1.59 (m, 4H) Mass Spec: CI m/e 451, (M+H)* I. 4-[[3-[4’-Fluoro-3,3’,5-trimethyl[1,1'biphenyl ] -2-yl lpropy 1 ] hydroxyphosphinyl ] 3-hydroxybutanoic acid, dilithium salt The Part H diester (0.122 mmol, 0.055 g) was stirred under argon in dioxane (2 ml) and treated with IN LiOH (0.366 mmol, 0.366 ml). The reaction mixture was heated in a 80°C oil bath for 45 minutes. The reaction mixture was cooled to room temperature and the solvents were removed on the rotavap. The resulting yellow solid was . . pumped under high vacuum for 2 hours to afford the title dilithium salt as a yellow solid.

TLC:Silica < jel, PMA R CH2Cl2/MeOH/CH3 co2h NMR (270 MHz , D2O) 25 δ 7.08-7.05 (m, 4Ξ) 6.80 (s, IE) 4.13 (m, IH) 2.54-2.47 (m, 2H) 2.38-2.28 . (nt, 2H) 30 2.30 (s, 3H) 2.22 (s, 3Ξ) 2.20 (s, 3Ξ) -318 1.59-1.50 (m, 2Ξ) 1.42-1.29 (m, 4H) Example 63 [lS-[l A. [lS-(l To dry Eyo (5 ml) at 0°C (ice bath) was added lithium aluminum hydride (132 mg, 1 molar eq) followed by the dropwise addition of [lS-(l R. L. Funk et al., Tetrahedron Lett. 25, 1655 (1984) (1.175 g, 3.47 mmole) in dry Eyo (5 ml) and the resulting grey suspension stirred overnight under argon at room temperature. . The mixture was quenched by the sequential dropwise addition of H20 (130 μΐ), 15% NaOH (130 μΐ) and yo (390 μΐ). Precipitated salts were removed by filtration through anhydrous MgSO^ over packed Celite. Evaporation in vacuo gave 1.112 g of a clear oil which was purified by flash chromatography on' silica gel eluting with (95:5) Hexane-EtOAc to give 902 mg (85.7%) of desired title alcohol as a clear oil which crystallized on standing, m.p. = 79-81°C. TLC (9:1) Hexane-EtOAc, R£=0.21. -319Anal Calcd for C18H3402Si: C, 69.61; H, 11.04 Found: C, 69.64; H, 11.04 NMR (CDC13) δ 0.00 (s, 6H) 0.82 (S, 9H) 0.83 (d, 3E) .94-1.05 (m, 2H) 1.18 (s, IH) 1.2-1.42 (m, 2H) 1.67 (m, 3H) 1.89 (m, IH) . .25&2.37 (2Ξ, 2 multiplets) 3.42 (bt, IH) 3.80 (dd, IB) 3.93 (bs, IH) 5.29 (d, IH) 5.48 (dq, IH) ppm.

B. [lS-(l A solution of Dess-Martin periodinane (895 mg, 2.11 mmole) in dry C^Clj (6 ml) was treated with dry t-C4Hg0H (200 μΐ) and the white suspension stirred under argon at room temperature for 15 minutes. A solution of the alcohol (596 mg, 1.92 mmole) in dry (6 ml) was added dropwise over 5 minutes and the mixture stirred under argon at room temperature for 20 minutes. The mixture was added to a solution of sodium thiosulfate (2.12 g) in 1.0 N NaHCO3 (12 ml) and the resulting stirred until all solids dissolved. The -320organic phase was washed with saturated NaHCO^, H^O and brine then dried over anhydrous Na^SO^ and evaporated in vacuo to give 1.005 g of a colorless oil. The crude product was combined with a smaller run (1.306 g total) and then purified by flash chromatography on silica gel eluting with (98:2) hexane-EtOAc. Product fractions were evaporated in vacuo to give 667 mg (75.7%) of desired title aldehyde as a colorless oil.

Rf=0.70 PMA TLC (7:3) Hexane-Et^O, NMR (CDC13): δ 0.07 (s, 3H) 0.00 (s, 3H) 0.85 (s, 9H) 0.89 (d, 3H) 0.93-1.10 (m, 2H) 1.38-1.52 (m, 2H) 1.58-1.78 (m, 4Ξ) 2.31 (a, IH) 2.66 (m, IH) 2.78 (m, IH) 4.30 (s, IB) 5.40 (d, IH) 5.50 (m, IH) 9.74 (d, IH) C. [IS-(l A -15°C (salt/ice bath) solution of the Part B aldehyde (667 mg, 2.16 mmole) and triphenylphosphine (1.7 g, 6.48 mmole) in dry -321 CH2C12 (10 ml) was treated dropwise over 5 minutes with a CH2C12 (5.ml) solution of carbon tetrabromide (1.7 g, 6.48 mmole) and the deep reddish brown mixture stirred under argon at -15°C for 30 minutes, at 0°C for 2 hours and finally overnight at room temperature. The mixture was recooled to 0°C, treated with additional triphenylphosphine (567 mg, 216 mmol) followed by CBr4 (358 mg, 1.08 mmole) and stirred for 4 hours at room temperature. The mixture was quenched with saturated NaHCO^ (10 ml), diluted with CH2C12, the organic phase filtered through sintered glass, washed with saturated NaHCO3 and brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 3.578 g of a brown solid. The crude product was purified by flash chromatography on silica gel eluting with neat hexanes. Product fractions were evaporated to give 677 mg (67.3%) of pure title.vinyl dibromide as a colorless oil.

TLC (9:11 Hexane-acetone LH NMR (CDC1-) δ 0.08&0.10 0.85 0.90 0.98 1.25-2.52 1:74. 1.82 2.39 2.56 2.66 3.95 .48 Rf=0.73 UV+PMA). 6H) (2 singlets, (d, 3H) (s, 9H) (m, 2Ξ) (m, 5H) (m, IH) (m, IH) (m, IH) (m, IH) (m, IH) (s, IH) (d, IH) -3225.52 (m, IH) 6.37 (d, ,1H) ppm.

D. [15-(l A -78°C (dry ice/acetone) solution of the Part c vinyl dibromide (495 mg, 1.07 mmole) in dry THF (6 ml) was treated dropwise over 5 minutes with a 1.6 M n-BuLi in hexanes solution (1.34 ml, 2.14 mmole) and the clear, colorless mixture stirred for 30 minutes under argon at -78°C. The mixture was guenched at -78°C by addition of saturated NH4C1 (5 ml), allowed to warm to room temperature, diluted with EtOAc, the organic phase washed with brine, dried over anhydrous Na2S04 and evaporated in vacuo to give 291 mg (89.6%) of crude title acetylene as a colorless oil.

TLC hexanes Rf=0.43, UV + PMA NMR (CDC13) δ 0.08&0.12 (2 singlets, 6Ξ) 0.90 (s, 9H) 0.99 (m, IH) 1.09 (d, 3H) 1.19 (m, IH) 1.46 (m, 2H) 1.74 (m, 3H) 2.12 (d, IH) 2.30 (m, IH) 2.41 (m, IB) 2.71 (m, IH) 4.37 (m, IH) -3235.38 (d, IH) .55 (m, IH) ppm.

E. (S)-4-(Chloromethoxyphosphinyl)-35 [[(1,1-dimethylethyl)diphenylsilyl]oxv]butanoic acid, methyl ester Phosphonochloridate was prepared from the Example 25 Part B dicyclohexylamine salt by the following procedure. The free acid was regenerated by partitioning the dicyclohexyl amine salt (1.3 g, 2.05 mmole) between EtOAc and 5% KHSO^, the organic layer was washed with 5% KHS04 (4 times) and brine then dried over anhydrous Na2S04 and evaporated in vacuo to give the free acid as a clear viscous oil..

The phosphonic acid monomethyl ester (2.05 mmole) was taken up in dry CH2C12 (5 ml), treated with distilled N,N-diethyltrimethylsilylamine (515 μΐ, 4.1 mmole) and the clear, colorless solution stirred at room temperature under argon for 1 hour. Excess reagent and solvent was removed in vacuo, the residual oil chased with benzene (2 x 10 ml).

The crude silyl ester (~2.05 mmole) in dry CH2C12 (5 ml) and dry DMF (1 drop) was cooled to 0°C (ice bath) and treated dropwise with distilled oxalyl chloride (195 μΐ, 2.26 mmole) and the yellow mixture stirred under argon at 0°C for 15 minutes and at room temperature for 45 minutes.

The mixture was evaporated in vacuo, chased with dry benzene (2 x 10 ml) to give crude title phosphonochloridate as a viscous yellow oil. 324F. [lS-[l A -78°C solution of the Part D acetylene (356 mg, 1.17 mmole) in dry THF (5 ml) was treated dropwise with a 1.6 M n-BuLi in hexanes solution (730 41I, 1.17 mmole) and the clear mixture stirred under argon at -78°C for 30 minutes. The acetylenic anion was then transferred via cannula dropwise over 15 minutes to a -78°C solution of the Part E phosphonochloridate in dry THF (6 ml). The yellow mixture was stirred 30 minutes at -78°C then quenched by dropwise addition of saturated NH4C1 (5 ml) and allowed to warm to room temperature. The mixture was partitioned between EtOAc and yo, the organic phase washed with brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 1.282 g of a pale yellow oil.

The crude product was purified by flash chromatography on silica gel eluting with (7:3) hexane-EtOAc. Product fractions were evaporated to give 624 mg (72.4%) of title acetylenic phosphinate as a colorless glass.

TLC (7:3) Hexane-acetone, £^=0.49, UV + PMA. -325G. [IS-[l A solution of Part F acetylene phosphinate (498 mg) in CH3OH (6 ml) was treated with 10% Pt/C (200 mg) and the black suspension shaken on a Parr apparatus under (40 psi) for 48 hours. The catalyst was removed by filtration through Celite, the reaction mixture charged with new catalyst (150 mg) and shaken on the Parr apparatus under H2 (40 psi) for an additional 24 hours. Catalyst was removed by filtration through Celite and the filtrate evaporated in vacuo to give 448 mg of a clear glass. The crude product was purified by flash chromatography on silica gel eluting with (8:2) Hexane-EtOAc. Product fractions were evaporated in vacuo to give 334 mg (66.5%) of title compound as a colorless glass.

TLC (7:3) EtOAc-Hexane, Rf 3 diastereomers as one spot=0.42, Rf 4th diastereomer as one spot=0.49, UV + PMA.

H. [IS-[l A solution of Part G compound (248 mg, 0.334 mmole) in CH3CN (4 ml) was treated with 48% HF in H20 (36 μΐ, 1 mmole) and the mixture stirred -326for 6.5'hours under argon at room temperature.

The mixture was partitioned between EtOAc and saturated NaHCOj, the organic phase washed with brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 227 mg of a colorless glass. The crude product was purified by flash chromatography on silica gel eluting with (4:1) Hexane-EtOAc followed by neat EtOAc. Product fractions were evaporated in vacuo to give 159 mg (75.8 %) of pure title mono alcohol as a colorless oil.

TLC (7:3) Acetane-Hexane, 11^=0.5 (UV (weak) + PMA.

I. [lS-[l A solution of the Part H alcohol (147 mg, 0.234 mmole) in dry pyridine (1.5 ml) was treated with 2,2-dimethylbutyryl choride (160 μΓ, 1.17 mmole, 5 eq.) followed by 4-dimethyl aminopyridine (3 mg, 0.1 eq) and the pale yellow mixture heated at 100°C under argon for 4 hours. The mixture was cooled, partitioned between 1.0 N HCl and EtOAc, the organic phase washed with 1.0 N HCl (2 times) and brine, dried over anhydrous Na2SO4 and evaporated to give 255 mg of a pale, yellow brown oil. · The crude product was purified by flash chromatography on silica gel eluting with (55:45) Hexane-EtOAc. Product fractions were evaporated in vacuo to give 112 mg (65.9%) of desired title dimethyl butyryl ester as a colorless oil. -327 Hexane-acetone, Rf=0.62, UV + PMA.

J. [lS-[l A solution of the Part I silyl ester (130 mg, 0.179 mmole) in THF (2 ml) was treated succes10 sively with glacial acetic acid (HOAc) (41 μΐ, 0.716 mmole) and a 1.1 M (n-C4Hg)4NF solution in THF (490 μΐ, 0.537 mmole) and the mixture stirred overnight under argon. The mixture was partitioned between EtOAc and 5% KHS04, the organic phase washed with H2O and brine, dried over anhydrous Na2SO4 and evaporated in vacuo to give 115 mg of a colorless oil. The crude product was purified by flash chromatography on silica gel eluting with (1:1) hexane-acetone. Product fractions were evaporated in vacuo to give 72 mg (82.4%) of desired title alcohol as a colorless oil.

TLC (1:1) Hexane-acetone, Rf=0.20, UV + PMA.

K. [lS-[l A solution of Part J alcohol (72 mg, 0.147 mmole) in dioxane (1.5 ml) was treated with 1.0 N LiOH (0.52 ml) and the mixture heated at 55°C (oil bath) under argon for 1.5 hours. The mixture was cooled, diluted with H2O, filtered and evaporated -328in vacuo to an oil. The crude product was chromatographed on HP-20 resin (3 cm bed, 15 mm diameter column) eluting with E^O followed by (70:30) Product fractions were evaporated in vacuo, dissolved in H20 (20 ml) and lyophilized to give 55 mg (74%) of desired title dilithium salt as a white solid.

TLC (8:1:1) C^C^-C^OH-C^COOH, Rf=0.05, PMA. Anal Calcd for C^H^gO^PL^+l^e moles I^O (MW 504.53): c, 54.75; H, 8.50; Pz 6.14 Found: c, 54.75; H, 8.64; Pz 5.93 Example 64 (S)—4—[ [ [3 ’ - (4-Fluorophenyl) spiro [cyclopentane1,1 ’ - [ IH ] indene ] -2-yl ] ethynyl ] hydroxyphosphinyl ] -3 hydroxybutanoic acid, dilithium salt_ A. 3-(4-Fluorophenyl)-lH-indene To a solution of solution of 4-fluorophenylmagnesium bromide (prepared from 6.43 ml of 4-fluorobromobenzene and 1.71 g of Mg in 50 ml of ether) at room temperature under argon was added dropwise over 40 minutes a solution of 1-indanone (6.61 g, 50 mmole) in dry ether (20 ml). After stirring at room temperature for 1 hour, the reaction was quenched by the dropwise addition of saturated NH^Cl solution (15 ml). The mixture was diluted with Et2O, washed with saturated NaCl solution, dried (MgSO^) and evaporated.

The residue was taken up in glacial acetic acid (15 ml) and refluxed under argon for 30 minutes. The acetic acid was evaporated off and chased twice with toluene. The residue (9.45 g) was purified by flash chromatography on silica gel -329eluting with hexane to give title compound (8.174 g, 78%) as a colorless oil which crystallized on standing, m.p. 38-40°C TLC (hexane) Rf=0.21.

B. 3'-(4-Fluorophenyl) spiro[cyclopentane1, 1 1 - Γ1Η] indene]_ To a solution of Part A compound (10.676 g, 50.8 mmole) in dry THF (90 ml) at 0°C under argon was added, in portions, solid potassium t-butoxide (12.2 g, 109 mmole). After stirring at 0°C for 30 minutes, 1,4-dihromobutane (6.50 ml, 101 mmole) was added dropwise. The resulting mixture was allowed to warm to room temperature, stirred for 2 hours, then partitioned between EtOAc-5% KHS04 (150 ml each). The organic phase was washed with saturated NaCl solution, dried (Na2S04) and evaporated to dryness. The crude product was purified by flash chromatography on silica gel, eluting with hexane to give title compound (9.43g, 70%) as a colorless oil. TLC (EtjO-hexane; 1:9) Rf=0.69 (Rf of Part A compound = 0.63).

C. 3’-(4-Fluorophenyl)spiro[cyclopentane1,1 * - [IH]indene]-2 *-carhoxaldehvde •25 To a solution of Part B compound (9.30 g, .2 mmole) in dry CH2C12 (50 ml) at 0°C under argon was added a 1.0 M solution of TiCl4 in CHjClj (70 ml, 70 mmole). The resulting dark green solution was treated dropwise with 1,1-dichloromethyl methyl ether (3.50 ml, 38.7 mmole). After stirring at 0°C for 1 hour and at room temperature for 1 hour, the mixture was poured onto cold, saturated NaHCOj solution. The -330organic phase was separated, dried (Na^SO^) and evaporated to dryness. The crude product was purified by flash chromatography on silica gel eluting with Et2O-hexane (5:95) to give title compound (8.233 g, 80%) as a yellow oil. Crystallization of the oil from hexane gave pure title compound (6.778 g, 66%) as pale yellow crystals, 116-117°C.

TLC (Et2O-hexane; 15:85) Rf=0.56.

Anal Calcd for C, 82.17; H, 5.86; F, 6.50 Found: C, 83.13; H, 5.82; F, 6.29 D. 2'-Ethynyl-3’-(4-fluorophenyl)spiro[cyclopentane-1,1 * -[1H1indene)_ To a solution of potassium t-butoxide (0.672 g, 6.00 mmol) in dry THF (8 ml) at -78°C under argon was added dropwise a solution of dimethyl di azomethy lphosphonate (0.960 g, 6.40 mmole, prepared as in J. Org. Chem. 36, 1379 (1971)) in THF (4 ml). After stirring at -78°C for 5 minutes, a solution of Part C compound (1.168 g, 4.00 mmole) in THF (8 ml) was added dropwise over 10 minutes. After stirring at -78°C for 3 hours, -45°C for 1.5 hour and at room temperature for 1 hour, the mixture was diluted with hexane (50 ml) and washed with 5% KHS04 solution. The organic phase was washed with saturated NaCl solution, dried (Na2SO4) and concentrated to a small volume (not to dryness). The yellow solution was flash chromatgraphed on silica gel eluting with hexane. The product containing fractions were combined, treated with butylated hydroxytoluene (BHT) (0.080 g, 0.36 mmole) and concentrated to a small volume -3311 (5-10 ml) which was used immediately as a solution >- 5 for the next step. TLC (Et2O-hexane; 1:9) R^=0.57. NMR (270 MHz, CDC13) using BHT as an internal standard (1.45 ppm, 18Ξ, s) shows the presence of 3.10 mmoles (77.5% yield) of the desired acetylene (3.32 ppm, IH, s). 10 E. (S )-4-( Chloromethoxyphosphinyl )-3[ [ (1,1-dimethylethyl) diphenyls ilyl ] oxvlbutanoic acid, methyl ester 15 Title phosphonochloridate was prepared from the Example 25 Part B dicyclohexylamine salt (3.44 g, 54.4 mmole) as described in Example 29, Part J using the following quantities; trimethylsilyldiethylamine (1.36 ml, 10.85 mmole), CH2C12 (15 ml); oxalyl choride (0.50 ml, 5.73 mmole), DMF (1 drop), C^Clj (15 ml). 20 F. (S ) -3 - [ [ (1,1-Dimethylethyl)diphenyl- silyl ] oxy] -4- [ [ [3'-(4-fluorophenyl)spiro[cyclopentane-l, 1’ -[lH]indene]-2yl ] ethynyl ] methoxypho sphiny 1 ] butanoic acid, methvl ester 25 The hexane solution of the Part D acetylene (3.10 mmole + 0.36 mmole of BHT) was diluted with dry 30 THF (15 ml) and cooled to -78°C under argon. The solution was then treated with a 1.6 M solution of n-BuLi in hexane (2.16 ml, 3.46 mmole) dropwise via syringe. After stirring at -78°C for 45 minutes, the anion solution was transferred via cannula to a -78°C solution of Part E phosphonochloridate (54.4 mmole) in dry THF (15 ml). After stirring at -78°C for 1 hour, the reaction was quenched by the -332dropwise addition of saturated NH^Cl (15 ml) and allowed to warm to room temperature. The mixture was extracted with EtOAc, the extracts washed with 5% KHS04, saturated NaHCOj and saturated NaCl solutions, dried (NajS04) and evaporated to dryness. The crude product was purified by flash chromatography on silica gel eluting with EtOAc-hexane (25:75) to give title compound (1.781 g, 80% based on Part D compound) as a pale yellow glass.

TLC (acetone-hexane; 1:1) R^=0.46.

G. (S)-4-[ [ [3 ’-(4-Fluorophenyl)spiro[cyclopentane-1 ,1’-[IH]indene]-2-yl]ethynyl]methoxyphosphinyl]-3-hydroxybutanoic acid, methyl ester_ To a solution of Part F compound (1.00 g, 1.39 mmole) in dry THF (5, ml) at room temperature under argon was added glacial acetic acid (0.32 ml, 5.59 mmole) and a 1.1 M solution of (n-C4Hg)4NF in THF (3.80 ml, 4.18 mmole). After stirring at room temperature for 18 hours, the mixture was diluted with EtOAc (50 ml) washed successively with IN HCl (3 x 30 ml) and saturated NaCl solutions, dried (Na2SO4) and evaporated to dryness. The residue was taken up in Et^O (20 ml), cooled in an ice bath and treated with excess etheral diazomethane. The residue obtained by evaporation of the ether was purified by flash chromatography on silica gel eluting with acetone-hexane (3:7) to give title compound (0.595 g, 89%) as a colorless glass.

TLC (acetone-hexane; 1:1) Rf =0.29. -333H. (S)-4-[[[3’-(4-Fluorophenyl)spiro[cyclopentane-1·, 1 ’ -[IH]indene]-2yl]ethynyl]hydroxyphosphinyl]-35 hydroxybutanoic acid, dilithium salt To a solution of Part G compound (0.580 g, 1.20 mmole) in dioxane (6 ml) at room temperature under argon was added IN LiOH solution (4.2 ml, 4.2 mmole). After stirring at room temperature for 3 hours, the mixture was diluted with acetonitrile (20 ml), the white preciiptate was collected, washed with acetonitrile and dried in vacuo to give crude title product (0.670 g) as a white solid. The crude product was suspended in water (10 ml) and applied to a short pad of HP-20 (15 ml bed volume, 1 inch diameter), eluted with water (300 ml) followed by MeOH (300 ml).

The product containing fractions were combined and evaporated to dryness. The solid residue was triturated with acetonitrile to give pure title product (0.550 g, 98%) as a white solid, mp 301-303°C (decomp).

TLC (i-C3H7OH-concentrated NH40H-H20; 7:2:1) Rf=0.48 -334' · τ Examples 65 to 122 Following the procedures as outlined heretofore and as described in the previous working Examples, the following additional compounds may be prepared.

H ll I , R-P-C^ -C-CZ2 -C02 -R X OH I z -335Ex.

NO. _R 2 OH OTO O>* -CH2O336 Ex.

No. _R 69. OLi 70. OCH3 71. OK OK ONa -CH.

Na Τ' " 337- H 74. OH -ch2ch2ch2 75. CH3O -CH_2 CH. 77. OH O ch2ch " 338- 79. OH 80. NaO 339 340 341 93. LiO Cl 342 343 101. BO CH.

-CB2CH2 344 Ex.

No. 102.

NaO / CH.

-CH2-CH2- Na 103.

LiO — CH. 104.

HO / CH. -ch2105.

CH3O -ch2ch2- CH3 — CH. 345 Ex.

NO. R _Z 106. HO 107. HO 108. KO -CH2CH2- h -CH2CH2CH2- h -OH2CH2- k -CH2CH2- h 109. HO 346Ex.

NO. R _2 110. LiO CH=CH Li 111. KO 112. LiO -CH2CH2- k -CH=CH- Li -CH=CH- CH3 113. CH3O 347- 348 ExNo. 119. 120. 121. ch3o 122. -34S-

Claims (7)

CLAIMS:

1. · A compound having the formula R^-P-GS^ -GH-C^ -CO 2 alkyl .R? OSi-C(CH-), =6¾ =6¾ Hj H including a]1 stereoisomers thereof, wherein R alkoxy or hydroxy; R^ is alkoxy, Cl, -C=c-Z, -G^-Z, -C^C^C^-Z, -G^O-Z, tCH=CH-Z or “G^C^-Z, wherein Z is a hydrophobic anchor which is R” 350 or -35110 uherain the dotted lines represent optional double bonds, wherein R 1 , R 2 , R 2a and R 2 ^ are the same or different and are each independently selected from H, halogen, lower alkyl, haloalkyl, phenyl, substituted phenyl or OR y , wherein R^ is H, alkanoyl, benzoyl, phenyl, halophenyl, ' phenyl-lower alkyl, lower alkyl, cinnamyl, haloalkyl, allyl, cycloalkyl-lower alkyl, adamantyl-lower alkyl or substituted phenyl-lower alkyl; R 5 and R 5 ’ are the same or different and are H, lower alkyl or OH; 0 o S II |i R is lower alkyl-C such as CH_-CH_-C-C-, ** \ 7 or aryld^-; R 6a is lower alkyl, hydroxy, q is 0, 1,

2. Or 3, and R 7 is H or lower alkyl; 0¾ R oxo or halogen; one of R 3 and R 4 is and the other is lower alkyl, cycloalkyl or phenyl-(CH^) -, P is 1 ' 2, 3 or 4 » wherein R 13 is hydrogen, lower alkyl, lower alkoxy, (except t-butoxy), halogen, phenoxy or benzyloxy; r 14 is hydrogen, lower alkyl, lower alkoxy, halogen, phenoxy or benzyloxy; R 14a is hydrogen, lower alkyl, lower alkoxy, or halogen; and -35214 14a vi the provisos that both R and R must T3 14& be hydrogen when R is hydrogen, R must be - « hydrogen when R 14 is hydrogen, not more than one of R 13 and R 14 is trifluoromethyl, not more than one of* R 13 anrf r 14 is phenoxy and not more than one of R 13 and R 14 is benzyloxy; R a is hydrogen, alkyl, Cj_ 6 .cycloalkyl, C 1-4 alkoxy (except t-butoxy), trifluoromethyl, fluoro, chloro, phenoxy or benzyloxy; R 9 is hydrogen, C 1-3 alkyl, alkoxy, trifluoromethyl, fluoro, chloro, phenoxy or g , with the provisos that R must be hydrogen when R 3 is hydrogen, not more than one of R 8 and R 9 is trifluoromethyl, not more than one of R 8 and R 9 is phenoxy, and not more than one of R 8 and R 9 is benzyloxy; R i0 a-nd R 11 are independently selected from hydrogen, alkyl, cycloalkyl, adamantyl-1 or q = 0, 1/2, 3 or 4; 7 is 0, S or M-R 10 ; R a is H or primary or secondary c alkyl; R b is primary or secondary alkyl; or R a + I? is or (cis) -cs^ -cg=rn-rv^ ; r = 2, 3, 4, 5 or 6; 353R 12 is lower alkyl, cycloalkyl or wherein R®, R 9 , R 13 , R 14 and * 14 * as defined above; R 15 and R 1S are bath H, Cl, Br, CI\I, CF 3 , phenyl, alkyl, C 2 _ g alkoxycarbonyl, -GH^OR 17 or -CHjOCONER 18 ; r 17 is B or C 1-6 alkanoyl; R 18 is alkyl or phenyl optionally substituted by F, Cl, Br or C^ alkyl; or R 15 and R 16 taken together are -(CS^g -CH-OGL·-, -C0N(R 19 )C0-, or -CON(R 20 )N(R 21 )CO-; S s 3 or 4; • R 19 = H, C 1-s alkyl, phenyl or benzyl; R 20 and R 21 are H, C 1-4 alkyl or benzyl.;R 22 is lower alkyl, cycloalkyi, adamantyl· βΓ -<=2>£-©. ! -354t = 1, 2, 3 or 4; R 23 anrf R 23a are the same or different and are each independently selected from hydrogen, lower alkyl, lower alkoxyl (except t-butoxy), 5 halogen, phenoxy or benzyloxy; and 23 23 and R 23a is trifluoromethyl, not more than one of R 23 and R 23a is phenoxy, and not more than 10 one of R 23 and R 23a is benzyloxy; where Z is -CajCHj- or -CSjC^C^, and where X is 0 attached to Z), -CHjO- (carbon attached to P and the hydrophobic anchor 2 is or -3552. A compound having the formula alkylO-P-C^-C-^-COj* 1 * 71 f 8 z including all stereoisomers thereof, wherein X is (CHj)^ —CH=CS—, -CsC-, or -C^O- and a is 1,-2 or 3 and Z is a hydrophobic anchor as defined in claim 1 .

3. A method for preparing a compound as defined in claim 1 wherein R 1 is Oalkyl and R 1 is -CH=CH-Z, «b-rt-h comprises treating the vinyl (trans) iodide I I cs with a a»taT!atigg agent in the presence of an iner* organ-i e*. and reacting the resulting am* on with a cooled solution of a phosphonochloridate of the structure alkylO-P-CH 2 -CH-CH 2 CO 2 alkyl ? Sl-C(CH 3 ) 3 Cl /\ C 6 H S C 6 S 5 in the presence of an inert organic solvent-356μ. a method for preparing a compound as defined in aim 2 having the stale—nrp CH I z ch comprises treating a cooled solution of a phosphonochloridate having the structure II alkylO-i’-Cl CH CH I z with a d? anion of the structure «Θ X CH Oalkyl in the presence o£ an inert organic solvent.

4. 5. ft compound as defined in claim 1, when prepared by a method as defined in claim 3. ’ · ’

5.

6. A compound as defined in claim 2, when prepared by a method as defined in claim ft.

7. A compound according to claim 1, or claim 2 substantially as herein described in the