反应详情

温度

60 °C

A mixture of 1-ethyl-7-methyl-3-{4-[(1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-benzimidazol-2-yl)oxy]phenyl}-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (0.090 g) and 2N HCl in EtOH (5.0 ml) was stirred at 60° C. for 10 h. After cooling to room temperature, the solvent was removed. The residue was recrystallized from EtOH—AcOEt to give 3-[4-(1H-benzimidazol-2-yloxy)phenyl]-1-ethyl-7-methyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one dihydrochloride (0.040 g).

1. temperatureAfter cooling to room temperature
2. customthe solvent was removed
3. customThe residue was recrystallized from EtOH—AcOEt