N-[2-(5-carbamoylpyridin-2-yloxy)ethyl]-7-methoxy-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide 、
三溴化硼 以to afford the desired product (28 mg, 28% yield) as a light yellow solid的产率得到N-[2-(5-carbamoylpyridin-2-yloxy)ethyl]-7-hydroxy-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide