2-(4-acetylsulfanyl-2-methyl-phenoxy)-2-methyl-propionic acid ethyl ester 、
methanesulfonic acid 5-(3-trifluoromethoxy-phenyl)-pent-4-ynyl ester 以to give 2-methyl-2-{2-methyl-4-[5-(3-trifluoromethoxy-phenyl)-pent-4-ynylsulfanyl]-phenoxy}-propionic acid ethyl ester as light brown oil的产率得到2-methyl-2-[2-methyl-4-[5-(3-trifluoromethoxy-phenyl)-pent-4-ynylsulfanyl]-phenoxy]-propionic acid ethyl ester