(2R,3S,4R,5R,6S)-2-((((2R,3R,4R,5S,6R)-4,5-diacetoxy-3-(1,3-dioxoisoindolin-2-yl)-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)-5-(1,3-dioxoisoindolin-2-yl)-6-(4-methoxyphenoxy)tetrahydro-2H-pyran-3,4-diyl diacetate   、                                                                                      3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl-O-trichloroacetimidate                                                                                                                                                              在
                                                                                                                                                                                 
三氟甲磺酸三甲基硅酯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二氯甲烷                                                                                  为溶剂,
                                                                                                                                                                                        以92%的产率得到p-methoxyphenyl 3,4,6-tri-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl-(1->6)-3,4-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl-(1->6)-3,4-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranoside