474417-23-7
1-(2-噻唑)-4-(叔丁氧基羰基)哌嗪
→
~93%
623588-36-3
4-(5-溴-2-噻吩)哌嗪-1-羧酸叔丁酯
4175-78-4
2,5-二溴噻唑
+
57260-71-6
1-Boc-哌嗪
~65%