7-methoxy-N-[2-(phenylsulfonamido)ethyl]-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide 、
三溴化硼 以to afford the desired product (36 mg, 37% yield) as an off-white solid的产率得到7-hydroxy-N-[2-(phenylsulfonamido)ethyl]-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide