Acetic acid (2S,3R,4S,6S)-6-acetoxymethyl-3-benzyloxy-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇   、                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 0.33h,
                                                                                                                以92.6%的产率得到(2S,3R,4S,6S)-3-Benzyloxy-6-hydroxymethyl-2-((2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-4-ol