phenyl 4-O-acetyl-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-methyl-1-thio-β-D-glucopyranoside   、                                                                                      
4-O-acetyl-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-[1-4]-2,3,6,-tri-O-benzyl-D-glucopyranosyl fluoride                                                                                                                                                              在
                                                                                                                                         
silver trifluoromethanesulfonate                                                                                                                                                                                                                               N-碘代丁二酰亚胺   、                                                                                                  4 A molecular sieve                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                    反应 22.0h,
                                                                                                                以18%的产率得到4-O-acetyl-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-methyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-[1-4]-2,3,6-tri-O-benzyl-D-glucopyranosyl fluoride