methyl 3α,12α-bis(azidoacetoxy)-5β-cholan-24-oate   、                                                                                      
1,3-二(2-丙炔氧基)苯                                                                                                                                                              在
                                                                                                                                                                                 
水   、                                                                                                  
copper(II) sulfate   、                                                                                                  
sodium ascorbate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
叔丁醇                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                以69%的产率得到methyl (4R)-4-[(1S,4R,28S,29R,30R,33S,34R,37R,38S)-1,29-dimethyl-6,26-dioxo-5,13,19,27-tetraoxa-8,9,10,22,23,24-hexazaoctacyclo[26.9.2.14,37.18,11.114,18.121,24.029,33.034,38]tritetraconta-9,11(43),14(42),15,17,21(41),22-heptaen-30-yl]pentanoate