2-chloro-N-(5-cyclopropyl-1H-pyrazol-3-yl)pyrimidin-4-amine   、                                                                                      
5-氨基吲唑                                                                                                                                                              在
                                                                                                                                                                                 
N'-(5-cyclopropyl-1H-pyrazol-3-yl)-N-(1H-indazol-5-yl)pyrimidine-2,4-diamine                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
1,4-二氧六环   、                                                                                         
正丁醇                                                                                  为溶剂,
                                                                                                                                                    反应 31.0h,
                                                                                                                以to afford title compound N4-(5-cyclopropyl-1H-pyrazol-3-yl)-N2-(1H-indazol-5-yl)pyrimidine-2,4-diamine (Compound 13) (44.5 mg, 15.8%) as solid的产率得到N'-(5-cyclopropyl-1H-pyrazol-3-yl)-N-(1H-indazol-5-yl)pyrimidine-2,4-diamine