5-ethynyl-2,2-dimethyl-[1,3]dioxan-(N-tert-butyloxycarbonyl)-5-ylamine   、                                                                                      
1-辛炔   、                                                                                      
对溴碘苯   、                                                                                      
5-iodo-2-tritylisoindoline                                                                                                                                                                                                                                                                                                          以the similar process afforded the title compound in 63% yield的产率得到tert-butyl-5-((4-bromophenyl)ethynyl)-2,2-dimethyl-1,3-dioxan-5-ylcarbamate