6-(cyclopropylmethoxy)-5-(3,3-difluoroazetidin-1-yl)pyridine-2-carboxylic acid 、
2,2,2-Trifluoro-1-(pyrrolidin-3-yl)ethan-1-ol hydrochloride 以to obtain the title compound (14 mg, 46%) as colorless liquid, MS (EI)的产率得到[6-(cyclopropylmethoxy)-5-(3,3-difluoroazetidin-1-yl)pyridin-2-yl]-[3-(2,2,2-trifluoro-1-hydroxyethyl)pyrrolidin-1-yl]methanone