3-[4-[3-[4-(dimethylamino)phenyl]prop-2-enoyl]phenyl]spiro[1H-quinazoline-2,1'-cyclohexane]-4-one   、                                                                                      
甲基肼                                                                                                                                                                                              以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以65%的产率得到3-[4-[3-[4-(dimethylamino)phenyl]-2-methyl-3,4-dihydropyrazol-5-yl]phenyl]spiro[1H-quinazoline-2,1'-cyclohexane]-4-one