2-[2-(1,1-dimethylethyl)pyrimidin-5-yl]-3,3-dimethylbutanoic acid   、                                                                                      1-(bromomethyl)-2,3,5,6-tetrafluoro-4-(methylsulfanylmethyl)benzene   、                                                                                      
potassium carbonate                                                                                                                                                                                                                                                                                                          生成                                                 
(lv) 4-(methylthiomethyl)-2,3,5,6-tetrafluorobenzyl (RS)-2-[2-(1,1-dimethylethyl)pyrimidin-5-yl)-3,3-dimethylbutanoate