乙酸酐   、                                                                                      trideuteriomethyl 2-O-benzoyl-3,6-di-O-(2,3,4,6-tetra-O-acetyl-4-O-β-D-galactopyranosyl-3,6-di-O-acetyl-2-deoxy-2-phthalimido-β-D-glucopyranosyl)-β-D-galactopyranoside                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  
一水合肼                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
trideuteriomethyl 2,4-di-O-acetyl-3,6-di-O-(2,3,4,6-tetra-O-acetyl-4-O-β-D-galactopyranosyl-2-acetamido-3,6-di-O-acetyl-2-deoxy-β-D-glucopyranosyl)-β-D-galactopyranoside