6,8-二甲氧基-3-甲基异色满-1-酮

3-methyl-6-methoxy-8-hydroxyisocoumarin

3-ethyl-5,7-dimethoxyisobenzofuran-1(3H)-one

6,8-dimethoxy-4H-isochromene-1,3-dione

2,4-二甲氧基-6-甲基苯甲酸