4-hydroxy-5-methoxybenzene-1,3-dicarbaldehyde

3-formyl-4-hydroxy-5-methoxy-benzoic acid

5-甲酰基-2-羟基-3-甲氧基苯甲酸

3-acetyl-4-benzenesulfonyloxy-5-methoxy-benzoic acid

5-烯丙基-3-甲氧基水杨酸乙酯