1570-09-8
5,7-dihydroxy-3,8-dimethoxy-2-(4-methoxyphenyl)chromen-4-one
+
108-24-7
乙酸酐
→
5128-43-8
3,8-Dimethoxy-2-(4-methoxyphenyl)-4-oxo-4H-chromene-5,7-diyl diac etate