2,4-二甲氧基苯甲酸甲酯

4-甲氧基水杨酸甲酯

2-(2,4-dimethoxyphenyl)-5,7-dihydroxychromen-4-one

methyl-2-(benzyloxy)-4-methoxybenzoate

2,4-dimethoxybenzoic anhydride