5-cyclopropyl-4-((S)-2,2,2-trifluoro-1-methyl-ethoxy)-pyridine-2-carboxylic acid 、
(5-Methyl-1,2,4-oxadiazol-3-yl)-(3-methyloxetan-3-yl)methanamine 以isolated (47 mg, 55%)的产率得到5-cyclopropyl-N-[(5-methyl-1,2,4-oxadiazol-3-yl)-(3-methyloxetan-3-yl)methyl]-4-[(2S)-1,1,1-trifluoropropan-2-yl]oxypyridine-2-carboxamide