N,N-diethyl-9-piperidin-4-ylidenexanthene-3-carboxamide

1-甲基螺[4H-3,1-苯并恶嗪-4,4'-哌啶]-2(1H)-酮

3-羟基-4,4-二甲氧基哌啶-1-羧酸叔丁酯

5-氟-3-(4-哌啶基)-1,2-苯并异噁唑

4-(2-嘧啶)-4-羟基哌啶