DL-3-叔-丁氧基-N-羧基-丙氨酸 N-苄酯

4-phenylmethoxycarbonyloxybenzoic acid

4-(乙酰基硫代)-1-哌啶羧酸苄酯

tert-butyl 4-hydroxy-2-(phenylmethoxycarbonylamino)butanoate

N,N’-双苄氧羰基-L-赖氨酸