3469-69-0
4-碘吡唑
+
141699-59-4
1-Boc-4-甲烷磺酰氧基哌啶
→
~70%
877399-73-0
4-(4-碘-1H-吡唑-1-基)-1-哌啶羧酸叔丁酯
189205-49-0
4-(甲基磺酰基)-哌啶-1-羧酸叔丁酯
~42%
109384-19-2
N-Boc-4-羟基哌啶