N-(2-acetamidoethyl)-7-methoxy-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide 、
三溴化硼 以to afford the desired product (28 mg, 25% yield) as a light brown solid的产率得到N-(2-acetamidoethyl)-7-hydroxy-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide