2-(8-tert-butyl-5-oxo-2,3-dihydro-5H-benzo[f][1,4]oxazepin-4-yl)-6-{1-methyl-5-[5-(morpholine-4-carbonyl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridazin-3-yl}-benzaldehyde   、                                                                                      
硼氢化钠                                                                                                                                                              在
                                                                                                                                                                                 
二氯甲烷   、                                                                                                  
Sodium sulfate-III   、                                                                                                  silica gel   、                                                                                                  Dichloromethane methanol ammonium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
methanol-dichloromethane   、                                                                                         
水                                                                                  为溶剂,
                                                                                                                                                    反应 1.17h,
                                                                                                                以to get 8-tert-butyl-4-(2-hydroxymethyl-3-{1-methyl-5-[5-(morpholine-4-carbonyl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridazin-3-yl}-phenyl)-3,4-dihydro-2H-benzo[f][1,4]oxazepin-5-one, which的产率得到8-tert-butyl-4-(2-hydroxymethyl-3-{1-methyl-5-[5-(morpholine-4-carbonyl)-pyridin-2-ylamino]-6-oxo-1,6-dihydro-pyridazin-3-yl}-phenyl)-3,4-dihydro-2H-benzo[f][1,4]oxazepin-5-one