(2R,2'R,3S,4'S,5'S)-3-[N-[2'-benzyl-5'-[(tert-butoxycarbonyl)amino]-4'-tert-butyldimethylsilyloxy-6'-phenyl-1'-oxo]-hexyl]amino-2-hydroxy-1-[N-isobutyl-amino-N'-[3-tetrahydropyranoxybenzenesulfonamido]]-4-phenylbutane

[(1S,2S,4R)-1-Benzyl-2-hydroxy-4-(3-methyl-butylcarbamoyl)-5-phenyl-pentyl]-carbamic acid tert-butyl ester

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

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

[(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