5-bromo-N-(4-methoxyphenyl)pentanamide

(S)-哌啶基-1,3-二羧酸 1-苄酯

[1,4]二哌啶基-2-酮

(S)-1-苄氧羰基六氢哒嗪-3-羧酸

5-aminopentanamide