4-(2-methylmorpholino)pyridin-3-amine   、                                                                                      
imidazo[1,2-b]pyridazine-8-carboxylic acid                                                                                                                                                              在
                                                                                                                                                                                 
N,N-二异丙基乙胺   、                                                                                                  N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
N,N-二甲基甲酰胺                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 N-(4-(2-methylmorpholino)pyridin-3-yl)imidazo[1,2-b]pyridazine-8-carboxamide