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