6-氨基-7-羟基-4-甲基香豆素

1-(2,4-dimethoxyphenyl)-2-thiophen-2-ylpyrrole

1-amino-3-(2,4-dimethoxyphenyl)urea

N-benzyl-2,4-dimethoxyaniline

1-azido-2,4-dimethoxybenzene