[(1S,2S,4R)-1-Benzyl-2-(tert-butyl-dimethyl-silanyloxy)-4-(5-butyryl-1H-imidazol-2-yl)-5-phenyl-pentyl]-carbamic acid tert-butyl ester

N--(1,1-dimethylethoxycarbonyl)-5(S)-amino-4(S)-(t-butyldimethylsilyloxy)-6-phenyl-2(R)-(phenylmethyl)hexanoic acid

(2R,4S,5S)-2-benzyl-5-<(tert-butoxycarbonyl)amino>-4-(tert-butyldimethylsiloxy)-N-(isoxazol-4-yl)-6-phenylhexanamide

{(1S,2S,4R)-1-Benzyl-2-(tert-butyl-dimethyl-silanyloxy)-4-[5-(1-hydroxy-butyl)-1H-imidazol-2-yl]-5-phenyl-pentyl}-carbamic acid tert-butyl ester