591-20-8
间溴苯酚
+
118811-07-7
4-(甲苯-4-磺酰氧)哌啶-1-羧酸叔丁酯
→
~86%
790667-54-8
1-BOC-4-(3-溴苯氧基)哌啶
141699-59-4
1-Boc-4-甲烷磺酰氧基哌啶
~84%
109384-19-2
N-Boc-4-羟基哌啶
~53%