吗啉   、                                                                                      
3-chloro-1-(4-methoxy-7-methyl-5H-furo[3,2-g]chromen-5-yl)-2,4-dimethyl-6,8-di-morpholin-4-yl-1,3,4,6-tetrahydro-2H-pyrimido[1,6-a]pyrimidine                                                                                                                                                                                              以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以79%的产率得到1-(4-methoxy-7-methyl-5H-furo[3,2-g]chromen-5-yl)-2,4-dimethyl-3,6,8-tri-morpholin-4-yl-1,3,4,6-tetrahydro-2H-pyrimido[1,6-a]pyrimidine