(2,2-difluoro-1-methylcyclopropyl)methanol 、 N-((2S)-1-((2-(3-fluoro-4-hydroxyphenyl)[1,3]oxazolo[4,5-c]pyridin-6-yl)oxy)propan-2-yl)acetamide 以in the same manner as in Step B of Example 4, the title compound was obtained的产率得到N-((2S)-1-((2-(4-((2,2-difluoro-1-methylcyclopropyl)methoxy)-3-fluorophenyl)[1,3]oxazolo[4,5-c]pyridin-6-yl)oxy)propan-2-yl)acetamide