3,4-二甲氧基苯酰肼

(3,4-二甲氧基苯基)(3,4,5-三甲氧基苯基)-甲酮

[2-(羟基甲基)-4,5-二甲氧基-苯基]甲醇

4-(3,4-二甲氧基苯甲酰基)吗啉

N-[2-[(3,4-dihydroxybenzoyl)amino]phenyl]-3,4-dihydroxybenzamide