Acetic acid (2R,3R,4R,5S,6S)-4-acetoxy-6-benzyloxymethyl-2-(2,4-dimethoxy-phenyl)-5-hydroxy-tetrahydro-pyran-3-yl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
吡啶   、                                                                                                  
氢气                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 Acetic acid (2R,3R,4S,5S,6S)-4,5-diacetoxy-6-acetoxymethyl-2-(2,4-dimethoxy-phenyl)-tetrahydro-pyran-3-yl ester