3-(3,4-dihydroxy-5-methoxyphenyl)prop-2-enoic acid

3-溴-4-异丙氧基-5-甲氧基苯甲醛

1-溴-2,3-二甲氧基苯

3,4-二羟基-5-甲氧基苯甲醛

3-溴-4-羟基-5-甲氧基苯甲腈