5-(3-fluorooxetan-3-yl)-4-(2,2,2-trifluoroethoxy)pyridine-2-carboxylic acid 、
2-methanesulfonyl-1-methyl-1-(5-methyl-[1,2,4]oxadiazol-3-yl)-ethylamine 、
氢溴酸 以isolated (40 mg, 47%)的产率得到5-(3-fluorooxetan-3-yl)-N-[2-(5-methyl-1,2,4-oxadiazol-3-yl)-1-methylsulfonylpropan-2-yl]-4-(2,2,2-trifluoroethoxy)pyridine-2-carboxamide