4-(((1S,2S)-2-(4-bromophenyl)cyclopropyl)methyl)morpholine   、                                                                                      
3-哒嗪酮                                                                                                                                                                                                                                                                                                          以afforded a solution of the free base of 8e in an assayed yield of 2.03 g (50% assay yield, 96% peak area)的产率得到2-(4-((1S,2S)-2-(morpholinomethyl)cyclopropyl)phenyl)pyridazin-3(2H)-one