tert-butyl (4-chloro-2-{[3-(propylsulfonyl)phenyl]ethynyl}phenoxy)acetate   、                                                                                      
tert-butyl (4-chloro-2-ethynylphenoxy)acetate   、                                                                                      
N,N-二乙基-3-溴苯磺酰胺                                                                                                                                                                                                                                                                                                          以the title compound was obtained as a yellow sticky solid in 72% yield的产率得到tert-butyl [4-chloro-2-({5-[(diethylamino)sulfonyl]-2-methylphenyl}ethynyl)phenoxy]acetate