Patent ID: 7030239

Claim:
A compound of the formula: where R 1 is —CH 2 phenyl, where phenyl is substituted with two —F in the 3- and 5-positions giving 3,5-difluorophenyl, or —CH 2 ) n1 —(R 1 -heteroaryl), where n1 is 0, 1, 2, or 3, and R 1-heteroaryl is (B) pyrimidinyl, (C) quinolinyl, (D) indenyl, (E) indanyl, (F) benzothiophenyl, (H) inclolinyl, (I) pyridazinyl, (J) pyrazinyl, (K) isoindolyl, (L) isoguinolyl, (N) quinazolinyl, (N) quinoxalinyl, (O) phthalazinyl, (P) imidazolyl, (Q) isoxazolyl, (R) pyrazolyl, (S) oxazolyl, (U) indolizinyl, (V) indazolyl, (W) benzothiazolyl, (X) benzimidazolyl, (Y) benzofuranyl, (BB) pyrrolyl, (CC) oxadiazolyl, (DD) thiadiazolyl, (EE) triazolyl, (FF) tetrazolyl, (GG) 1,4-benzodioxan (HH) purinyl, (II) oxazolopyridinyl, (JJ) imidazopyridinyl, (KK) isothiazolyl, (LL) naphthyridinyl, (MM) cinnolinyl, (NN) carbazolyl, (OO) β-carbolinyl, (PP) isochromanyl, (QQ) chromanyl, (RR) furazanyl, (SS) tetrahydroisoquinoline, (TT) isoindolinyl, (UU) isobenzotetrahydrofuranyl, (VV) isobenzotetrahydrothienyl, (WW) isobenzothiophenyl, (XX) benzoxazolyl, or (YY) pyridopyridinyl; and PROTECTING GROUP is t-butoxycarbonyl, benzyloxycarbonyl, formyl, trityl, phthalimido, trichloroacetyl, chloroacetyl, bromoacetyl, iodoacetyl, 4-phenylbenzyloxycarbonyl, 2-methylbenzyloxycarbonyl, 4-ethoxybenzyloxycarbonyl, 4-fluorobenzyloxycarbonyl, 4-chlorobenzyloxycarbonyl, 3-chlorobenzyloxycarbonyl, 2-chlorobenzyloxycarbonyl, 2,4-dichlorobenzyloxycarbonyl, 4-bromobenzyloxycarbonyl, 3-bromobenzyloxycarbonyl, 4-nitrobenzyloxycarbonyl, 4-cyanobenzyloxycarbonyl, 2-(4-xenyl)isopropoxycarbonyl, 1,1-diphenyleth-1-yloxycarbonyl, 1,1-diphenylprop-1-yloxycarbonyl, 2-phenylprop-2-yloxycarbonyl, 2-(p-toluyl)prop-2-yloxycarbonyl, cyclopentanyloxycarbonyl, 1-methylcycoopentanyloxycarbonyl, cyclohexanyloxycarbonyl, 1-methylcyclohexanyloxycarbonyl, 2-methylcyclohexanyloxycarbonyl, 2-(4-toluylsulfonyl)ethoxycarbonyl, 2-(methylsulfonyl)ethoxycarbonyl, 2-(triphenylphosphino)ethoxycarbonyl, fluorenylmethoxycarbonyl, 2-(trimethylsilyl)ethoxycarbonyl, allyloxycarbonyl, 1-(trimethylsilylmethyl)prop-1-enyloxycarbonyl, 5-benzisoxazoylmethoxycarbonyl, 4-acetoxybenzyloxycarbonyl, 2,2,2-trichloroethoxycarbonyl, 2-ethynyl-2-propoxycarbonyl, cyclopropylmethoxycarbonyl, 4-(decyloxyl)benzyloxycarbonyl, isobornyloxycarbonyl, -phenyl-C(═N)—H, or 1-piperidyloxycarbonyl.