benzyl 4-C-(2,6-anhydro-4,5,7-tri-O-benzyl-D-threo-L-galacto-heptit-1-yl)-2,3,6-tri-O-benzyl-4-deoxy-α-D-glucopyranoside                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                生成                                                 4-C-(2,6-anhydro-D-threo-L-galacto-heptit-1-yl)-4-deoxy-α/β-D-glucopyranose