(S)-boc-3-氨基-2-吡咯烷酮

(S)-Cbz-3-氨基-Y-丁内酯

(3S)-3-benzyloxycarbonylamino-4-hydroxybutanoic acid

4-[(1-甲氧基-1-氧代-3-苯基丙烷-2-基)氨基]-4-氧代-3-(苯基甲氧羰基氨基)丁酸

甲基N-[(苄氧基)羰基]-L-beta-天冬氨酰-L-苯丙氨酸酯