1-Boc-3-羟基-1,2,3,6-四氢吡啶

4(3,4-二氯苯氧基)哌啶

4-(4-碘-1H-吡唑-1-基)-1-哌啶羧酸叔丁酯

4-氟哌啶

1-Boc-哌啶