5-(1-Fluorocyclobutyl)-4-(2,2,2-trifluoroethoxy)pyridine-2-carboxylic acid 、
2-(3-amino-1,1-dioxo-thietan-3-yl)-N-methyl-acetamide 以isolated (15 mg, 19%)的产率得到5-(1-fluorocyclobutyl)-N-[3-[2-(methylamino)-2-oxoethyl]-1,1-dioxothietan-3-yl]-4-(2,2,2-trifluoroethoxy)pyridine-2-carboxamide