8-(benzyloxy)-5-[(1R)-2-({2-[3-(2,2-difluoro-2-phenylethoxy)phenyl]ethyl}amino)-1-hydroxyethyl]quinolin-2(1H)-one 在
钯 silica gel 、
methanol-dichloromethane 作用下,
以
甲醇 为溶剂,
反应 20.0h,
以to give the title compound (0.21 g, 70%) as a foam的产率得到5-[(1R)-2-({2-[3-(2,2-difluoro-2-phenylethoxy)phenyl]ethyl}amino)-1-hydroxyethyl]-8-hydroxyquinolin-2(1H)-one