(2S,3S,4R,5S,6S)-2-(acetoxymethyl)-6-((S)-2-(benzoyloxy)-2-((2R,5R,6R)-2-methoxy-5,6-dimethyl-4-methylenetetrahydro-2H-pyran-2-yl)acetamido)tetrahydro-2H-pyran-3,4,5-triyl triacetate                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.5h,
                                                                                                                以87%的产率得到(2S)-2-hydroxy-2-[(2R,5R,6R)-2-methoxy-5,6-dimethyl-4-methylideneoxan-2-yl]-N-[(2S,3S,4R,5R,6S)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]acetamide