623-73-4
重氮乙酸乙酯
+
109384-19-2
N-Boc-4-羟基哌啶
→
~76%
189889-45-0
1-Boc-4-乙氧基羰基甲氧基哌啶
105-36-2
溴代乙酸乙酯
~36%