2-甲基-6,7-二甲氧基-1,2,3,4-四氢异喹啉-1-酮

N,N-diethyl-3,4-dimethoxybenzamide

3-(3,4-二甲氧基苯基)-3-氧丙酸甲酯

N'-(3,4-dimethoxybenzoyl)-3,4-dimethoxybenzohydrazide

butyl 3,4-dimethoxybenzoate