708-76-9
4,6-二甲氧基水杨醛
+
105-53-3
丙二酸二乙酯
→
~94%
82235-61-8
ethyl 5,7-dimethoxy-2-oxochromene-3-carboxylate
487-06-9
5,7-二甲氧基香豆素
81017-27-8
5,7-dimethoxy-2-oxochromene-3-carboxylic acid