5-formyl-2-(3,4-dimethoxyphenyl)-3H-benzimidazole

4-(4-甲基哌嗪基)-1,2-苯二胺

N-甲基哌嗪

2-(3,4-dimethoxyphenyl)-1H-benzimidazole-6-carbonitrile

2-硝基-5-氯苯胺