CBZ-L-天门冬酰胺4-硝基苯酯

(S)-N-tert-butyl-1-[(2S,3S)-3-amino-2-hydroxy-4-phenylbutanoyl]pyrrolidine-2-carboxamide

N-(2-甲基-2-丙基)-L-脯氨酰胺

(2S,3S)-3-[[(benzyloxy)carbonyl]amino]-2-hydroxy-4-phenylbutanoic acid methyl ester

(2S,3S)-3-(N-benzyloxycarbonyl)amino-2-hydroxy-4-phenylbutyryl-L-prolyl-tert-butyl amide