tert-butyl [(1S)-2-{[6-(6-hydroxy-1,3-benzoxazol-2-yl)pyridin-3-yl]oxy}-1-methylethyl]carbamate 、
(3,3-difluorocyclobutyl)methyl methanesulfonate 以in the same manner as in Example 2, step E, the title compound was obtained的产率得到tert-butyl {(1S)-2-[(6-{6-[(3,3-difluorocyclobutyl)methoxy]-1,3-benzoxazol-2-yl}pyridin-3-yl)oxy]-1-methylethyl}carbamate