4-methoxyphenyl 2,3-di-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-β-D-galactopyranosyl-(1->4)-3,6-di-O-benzoyl-2-deoxy-2-phthalimido-β-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 ceric ammonium nitrate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 0.5h,
                                                                                                                以77%的产率得到2,3-di-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-β-D-galactopyranosyl-(1->4)-3,6-di-O-benzoyl-2-deoxy-2-phthalimido-β-D-glucopyranose