4-(4-氟苯基)呱碇

4-吡咯烷-1-基哌啶

1-叔丁基哌啶-4-酮

2-(1-苄基-4-哌啶基)-2-氰基乙酸乙酯

1-苄基-3-甲氧羰基-4-哌啶酮盐酸盐