2-(Dimethylamino-methyleneamino)-5-ethoxy-4-methoxy-benzoic acid methyl ester

3-羟基-4-甲氧基苯甲酸甲酯

3-乙氧基-4-甲氧基苯甲酸甲酯

5-ethoxy-4-methoxy-2-nitrobenzoic acid methyl ester