1-methyl-2-[(1-methylbenzimidazol-2-yl)methyl]benzimidazole

3-chloro-1-methylquinoxalin-2-one

1,4-二氢-1,4-二甲基-2,3-喹喔啉二酮

N-甲基-2,6-二硝基苯胺

1-methyl-2-(2-nitrophenyl)benzimidazole