bromo-(3-methylsulfanyl-5-trifluoromethyl-phenyl)-acetic acid methyl ester 、
4-nitro-2-trifluoromethylthiophenol 以to form (3-methylsulfanyl-5-trifluoromethyl-phenyl)-(4-nitro-2-trifluoromethyl-phenylsulfanyl)-acetic acid methyl ester, 108, which的产率得到(3-methylsulfanyl-5-trifluoromethyl-phenyl)-(4-nitro-2-trifluoromethyl-phenylsulfanyl)-acetic acid methyl ester