5-氯-3-[2-(4-羟基哌啶-1-基)-2-氧代乙基]-1,3-苯并噻唑-2-酮

4-(4-羟基哌啶-1-基)哌啶-1-羧酸叔丁酯

1-tritylpiperidin-4-one

4-[2-(4-羟基-1-哌啶基)乙基]苯甲酸

3-碘-氮杂丁烷-1-羧酸叔丁酯