2-(2-(苄氧基羰基氨基)丙-2-基)-5-羟基-6-氧代-1,6-二氢嘧啶-4-甲酸甲酯

N-苯甲氧基甲酰基-1,2,5,6-四氢吡啶

benzyl 3-(acetylthio)piperidine-1-carboxylate

2S-苄氧羰酰氨基-4-氧代-丁酸苄酯

Z-L-苯丙氨醇