35471-23-9
ethyl (E)-4-bromo-3-ethoxy-2-butenoate
+
74-89-5
甲胺
→
~67%
90968-34-6
3-ethoxy-1-methyl-2H-pyrrol-5-one
57592-45-7
3-乙氧基-2-丁烯酸乙酯