1,2,3,6-四氢吡啶-4-硼酸频那醇酯

4-(4-溴苯基)-1,2,3,6-四氢吡啶

4-(吡啶-2-基)哌啶-1-羧酸叔丁酯

4-(4-氯苯基)-1,2,3,6-四氢-吡啶

2-(哌啶-4-基)苯甲腈