(4E)-4-[(3,4-dimethoxyphenyl)methylidene]-5-phenyl-2,3-dihydropyrrole

2-(2,3-dimethoxyphenyl)cyclohexan-1-one

1-溴-2-碘-4,5-二甲氧基苯

1-氯-2,3-二甲氧基苯

ethyl 2,3-dimethoxybenzoate