5470-26-8
ethyl 1-pyrrolidinecarboxylate
→
~87%
4036-03-7
ethyl 2-oxopyrrolidine-1-carboxylate
616-45-5
2-吡咯烷酮
+
515-84-4
三氯乙酸乙酯
~81%
541-41-3
氯甲酸乙酯
~79%