、
Ethyl 3-amino-4-{[2-(trifluoro-methoxy)ethyl]amino}benzoate 、
2-(trifluoromethoxy)ethanamine 、
4-氯-3-硝基苯甲酸乙酯 、
9H-咔唑-3-甲醛 以to give ethyl 2-(9-ethyl-9H-carbazol-3-yl)-1-[2-(trifluoromethoxy)ethyl]-1H-benzimidazole-5-carboxylate的产率得到ethyl 2-(9-ethyl-9H-carbazol-3-yl)-1-[2-(trifluoromethoxy)ethyl]-1H-benzimidazole-5-carboxylate