4-azepan-1-yl-N-[(2R,3S)-2-(3-azidopropyl)pyrrolidin-3-yl]-6-chloropyrimidin-2-amine   、                                                                                      
1,4-环己二酮单乙二醇缩酮                                                                                                                                                                                                                                                                                                          以to obtain the title compound (1.25 g)的产率得到4-azepan-1-yl-N-[(2R,3S)-2-(3-azidopropyl)-1-(1,4-dioxaspiro[4, 5]dec-8-yl)pyrrolidin-3-yl]-6-chloropyrimidin-2-amine