3-chloro-5-(((1R)-2,2-difluorocyclopropyl)methoxy)pyridine-2-carboxylic acid 、
tert-butyl ((2S)-1-((5-amino-4-hydroxypyridin-2-yl)oxy)propan-2-yl)carbamate 以in the same manner as in Step E of Example 139, the title compound was obtained的产率得到tert-butyl ((2S)-1-((5-(((3-chloro-5-(((1R)-2,2-difluorocyclopropyl)methoxy)pyridin-2-yl)carbonyl)amino)-4-hydroxypyridin-2-yl)oxy)propan-2-yl)carbamate