3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl-O-trichloroacetimidate   、                                                                                      
                                                                                                                                                              在
                                                                                                                                                                                 4 A molecular sieve   、                                                                                                  
silver trifluoromethanesulfonate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以60%的产率得到p-methoxyphenyl (3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranosyl-(1->4)-2-acetamido-3,6-di-O-benzyl-2-deoxy-β-D-glucopyranoside