5-溴-2-羟基-4-甲氧基苯甲醛

3-bromo-2-hydroxy-4-methoxybenzaldehyde

3-甲氧基苯酚

2-hydroxy-4-methoxy-5-nitro-benzaldehyde

3,5-二溴-2,4-二羟基苯甲醛