4-{[(5-chloro-2-pyridinyl)methyl]oxy}-6'-(7-tert-butyloxycarbonyl-1-oxo-2,7-diazaspiro[3.5]nonan-2-yl)-2H-[1,3'-bipyridin]-2-one 在
crude product 作用下,
以
trifluoracetic acid-dichloromethane 为溶剂,
反应 1.0h,
以to afford the title compound (5.37 mg, 32.8%)的产率得到4-{[(5-chloro-2-pyridinyl)methyl]oxy}-6'-(1-oxo-2,7-diazaspiro[3.5]nonan-2-yl)-2H-[1,3'-bipyridin]-2-one