67-56-1
甲醇
+
64700-15-8
7-(羧基甲氧基)-4-甲基香豆素
→
~72%
89316-64-3
methyl 2-(4-methyl-2-oxochromen-7-yl)oxyacetate
181482-48-4
90-33-5
4-甲基伞形酮
69321-36-4
(4-甲基-2-氧代-2H-色烯-7-氧基)-乙酸肼