(S)-Methanesulfonic acid 3-(2-phenoxy-4-trifluoromethyl-phenoxy)-butyl ester 、
ethyl (2-ethyl-4-mercaptophenoxy)acetate 以to afford 0.115 g (85%) of product的产率得到(s)-{2-Ethyl-4-[3-(2-phenoxy-4-trifluoromethyl-phenoxy)-butylsulfanyl]-phenoxy}-acetic acid ethyl ester