4-氨基-1H-咪唑-5-羧酸乙酯   、                                                                                      
4,4,4-三氟-1-[4-(三氟甲基)苯基]丁烷-1,3-二酮                                                                                                                                                              在
                                                                                                                                                                                 crude product   、                                                                                                  silica gel   、                                                                                                  ethyl acetate heptane   、                                                                                                  diethyl acetate hexane                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
溶剂黄146                                                                                  为溶剂,
                                                                                                                                                    反应 24.0h,
                                                                                                                以to yield 4-trifluoromethyl-2-(4-trifluoromethyl-phenyl)-imidazo[1,5-a]pyrimidine-8-carboxylic acid ethyl ester (5.65 g, 43%) as a yellow solid的产率得到4-trifluoromethyl-2-(4-trifluoromethyl-phenyl)-imidazo[1,5-a]pyrimidine-8-carboxylic acid ethyl ester