5-(4-methoxyphenyl)-6-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidine-3-carboxylic acid methyl ester   、                                                                                      (3R)-3-methyl-1-[(1S)-1-(2,3,5-trifluorophenyl)ethyl]piperazine                                                                                                                                                              在
                                                                                                                                         
四氯化钛                                                                                                                                                                                                                               silica gel                                                                                                                                  作用下,
                                                                                                                以
                                                                                         heptanes   、                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                                                        以to afford the title compound after column chromatography (silica gel, 20-30% EtOAc in heptanes) as a vitreous yellow solid with spectral data consistent with的产率得到[5-(4-Methoxyphenyl)-6-methyl-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-3-yl][(2R)-2-methyl-4-[(1S)-1-(2,3,5-trifluorophenyl)ethyl]-1-piperazinyl]methanone