(6-hydroxy-indol-1-yl)-acetic acid tert-butyl ester 、 5-chloromethyl-2-(2,3-difluoro-4-trifluoromethyl-phenyl)-4-methyl-thiazole 、
Dicaesio carbonate 、
碘化钾 以to obtain {6-[2-(2,3-difluoro-4-trifluoromethyl-phenyl)-4-methyl-thiazol-5-ylmethoxy]-indol-1-yl}-acetic acid tert-butyl ester as colorless liquid的产率得到{6-[2-(2,3-difluoro-4-trifluoromethyl-phenyl)-4-methyl-thiazol-5-ylmethoxy]-indol-1-yl}-acetic acid tert-butyl ester