N-chloromethyl-N-(2-fluoro-4-methylphenyl)carbamoyl chloride   、                                                                                      
1-(4-trifluoromethoxybenzyl)-3-(2,2,2-trifluoroethyl)thiourea                                                                                                                                                              在
                                                                                                                                                                                 silica gel   、                                                                                                  
ethyl acetate n-hexane                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 5.0h,
                                                                                                                以developing solvent hexane/ethyl acetate (9:1)) to give 0.68 g of the captioned compound的产率得到2-(2,2,2-Trifluoroethylimino)-3-(4-trifluoromethoxybenzyl)-5-(2-fluoro-4-methylphenyl)-tetrahydro-1,3,5-thiadiazin-4-one