1-Boc-4-哌啶氧乙酸

N-Boc-4-碘哌啶

4-(4-溴苯磺酰基)哌啶-1-甲酸叔丁酯

Ethyl 2-chloro-5-nitronicotinate

4-(4-(羟基甲基)-1H-1,2,3-噻唑-1-基)哌啶-1-羧酸叔丁酯