5-cyclobutyl-4-((S)-2,2,2-trifluoro-1-methyl-ethoxy)-pyridine-2-carboxylic acid 、
2-methanesulfonyl-1-methyl-1-(5-methyl-[1,2,4]oxadiazol-3-yl)-ethylamine 以isolated (77 mg, 57%) as a white solid的产率得到5-Cyclobutyl-4-((S)-2,2,2-trifluoro-1-methyl-ethoxy)-pyridine-2-carboxylic acid [2-methanesulfonyl-1-methyl-1-(5-methyl-[1,2,4]oxadiazol-3-yl)-ethyl]-amide