5-(4-chlorophenyl)-2-methoxy-3-(3-methyl-1,2,4-oxadiazol-5-yl)-4H,7H-pyrazolo[1,5-a]pyrimidin-7-one 在
ice water 、
水 、 crude product 作用下,
以
硫酸 为溶剂,
反应 5.0h,
以to afford 5-(4-chlorophenyl)-2-hydroxy-3-(3-methyl-1,2,4-oxadiazol-5-yl)-4H,7H-pyrazolo[1,5-a]pyrimidin-7-one as a gray solid (36.1 mg)的产率得到5-(4-chlorophenyl)-2-hydroxy-3-(3-methyl-1,2,4-oxadiazol-5-yl)-4H,7H-pyrazolo[1,5-a]pyrimidin-7-one