ethyl 3-[5-(3-{[(2S)-1-methoxypropan-2-yl]oxy}-5-[(1-methyl-1H-pyrazol-3-yl)carbamoyl]phenoxy)pyridin-2-yl]-1,2,4-oxadiazole-5-carboxylate 、
环丙胺 在
silica gel 、
ethyl acetate n-hexane 作用下,
以
乙醇 为溶剂,
反应 1.0h,
以to obtain N-cyclopropyl-3-[5-(3-{[(2S)-1-methoxypropan-2-yl]oxy}-5-[(1-methyl-1H-pyrazol-3-yl)carbamoyl]phenoxy)pyridin-2-yl]-1,2,4-oxadiazole-5-carboxamide (265 mg) as a colorless solid的产率得到N-cyclopropyl-3-[5-(3-{[(2S)-1-methoxypropan-2-yl]oxy}-5-[(1-methyl-1H-pyrazol-3-yl)caxbamoyl]phenoxy)pyridin-2-yl]-1,2,4-oxadiazole-5-carboxamide