N-苄氧羰基-L-苯丙氨酸

(4S)-4-benzyl-5-oxo-1,3-oxazolidine-3-carboxylic acid benzyl ester

benzyl (S,E)-4-benzyl-5-(2-ethoxy-2-oxoethylidene)oxazolidine-3-carboxylate

(S)-ethyl 4-((tert-butoxycarbonyl)(methyl)amino)-3-oxo-5-phenylpentanoate

溴乙酸乙酯