70755-38-3
methyl 2-methylcycloprop-2-ene-1-carboxylate
+
64-19-7
乙酸
→
6124-79-4
4-甲基-2(H)-呋喃酮
95411-48-6
methyl 4-acetyloxy-3-methylbut-3-enoate
95411-52-2