2445-83-2
7-甲基香豆素
→
50779-65-2
6-methyl-1-benzofuran-2-carboxylic acid
698-27-1
2-羟基-4-甲基苯甲醛
+
685-87-0
溴代丙二酸二乙酯
1210226-83-7
tert-butyl-6-methyl-benzo[b]furan-2-carboxylate
53715-89-2
Ethyl 6-methyl-1-benzofuran-2-carboxylate