2-methyl-6-(tert-butyldimethylsilyl)oxy-5-(N-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-cyanonaphth-1-yl)methylbenzimidazole 、
四丁基氟化铵 在
silica gel 、 Hexane ethyl acetate dichloromethane methanol 作用下,
以
四氢呋喃 为溶剂,
反应 0.5h,
以to afford 2-methyl-6-hydroxy-5-(N-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-cyanonaphth-1-yl)methylbenzimidazole的产率得到2-methyl-6-hydroxy-5-(N-(tert-butoxycarbonyl)piperidin-4-yloxy)-1-(4-cyanonaphth-1-yl)methylbenzimidazole