4-methoxyphenyl 2,3-di-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-β-D-galactopyranosyl-(1->4)-3,6-di-O-benzyl-2-deoxy-2-phthalimido-β-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                                                                 palladium 10% on activated carbon   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇   、                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                    反应 4.0h,
                                                                                                                以94%的产率得到4-methoxyphenyl 2,3-di-O-benzoyl-4,6-O-[(R)-1-methoxycarbonylethylidene]-β-D-galactopyranosyl-(1->4)-2-deoxy-2-phthalimido-β-D-glucopyranoside