2'-azidoethyl-2,3,4,6-tetra-O-acetyl D-galactopyranoside   、                                                                                      
                                                                                                                                                              在
                                                                                                                                                                                 
copper(l) iodide   、                                                                                                  
N,N-二异丙基乙胺   、                                                                                                  
轮环藤宁                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                    反应 72.0h,
                                                                                                                以88%的产率得到(2R,3R,4S,5R,6R)-2-(hydroxymethyl)-6-[2-[4-[[4-[[(2S,5S,8S,11S)-1,4,7,10-tetrabenzyl-5,8,11-tris[[4-[[1-[2-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyethyl]triazol-4-yl]methoxy]phenyl]methyl]-1,4,7,10-tetrazacyclododec-2-yl]methyl]phenoxy]methyl]triazol-1-yl]ethoxy]oxane-3,4,5-triol