62939-87-1
methyl 2-oxocyclododecane-1-carboxylate
+
78-94-4
丁烯酮 甲基乙烯基酮
→
62939-86-0
methyl 2-oxo-1-(3-oxobutyl)cyclododecane-1-carboxylate
830-13-7
环十二酮