(2S,4S,5S)-2-<<(phenylmethoxy)carbonyl>amino>-4-<<(1,1-dimethylethyl)dimethylsilyl>oxy>-5-<<(1,1-dimethylethoxy)carbonyl>amino>-1,6-diphenylhexane

(3R,5S)-5-((S)-1-Amino-2-phenyl-ethyl)-3-benzyl-dihydro-furan-2-one

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

(3S,5S)-3-benzyl-5-{(1S)-1-[(tert-butoxycarbonyl)amino]-2-phenylethyl}dihydrofuran-2-(3H)-one

(2R,4S,5S)-5-Amino-2-benzyl-4-hydroxy-6-phenyl-hexanoic acid [(1H-indol-2-yl)-phenyl-methyl]-amide