3-methyl-N-[[4-(1-oxidopyridin-1-ium-2-yl)piperidin-1-yl]methyl]benzamide

4-羟基-4-(3-(三氟甲基)苯基)哌啶-1-羧酸叔丁酯

1,3-二氢-1-[1'-[(2-甲基苯基)甲基][1,4'-联哌啶]-4-基]-2H-苯并咪唑-2-酮

4-(1-氰基-2-乙氧基-2-氧代乙基)-4-苯基哌啶-1-羧酸叔丁酯

N-(4-Fluorophenyl)piperidin-4-amine