7-methoxy-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxylic acid 、 N-(2-aminoethyl)pyridine-4-sulfonamide 以to afford the desired product (0.069 g, 21% yield) as an off-white solid的产率得到7-methoxy-N-[2-(pyridine-4-sulfonamido)ethyl]-2-(thiophen-2-yl)-1H-benzo[d]imidazole-4-carboxamide