吲哚-2,3-二羧酸二甲酯

methyl 2-(3,4-dimethoxyphenyl)-1H-indole-3-carboxylate

dimethyl 2-(3,4-dimethoxyphenyl)quinoline-3,4-dicarboxylate

dimethyl 1-(3,4-dimethoxyphenyl)-2-oxo-1,2-dihydroquinoline-3,4-dicarboxylate

3,4-二甲氧基苯甲酸甲酯