Acetic acid (2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-[(2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-((2S,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-ylmethoxy]-tetrahydro-pyran-2-ylmethyl ester                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  
sodium methylate                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲苯                                                                                  为溶剂,
                                                                                                                                                    反应 10.0h,
                                                                                                                以96.5%的产率得到{(2R,3R,4S,5R,6S)-3,4,5-Tris-benzyloxy-6-[(2R,3R,4S,5R,6S)-3,4,5-tris-benzyloxy-6-((2S,4S,5R,6S)-4,5-bis-benzyloxy-6-methoxy-tetrahydro-pyran-2-ylmethoxy)-tetrahydro-pyran-2-ylmethoxy]-tetrahydro-pyran-2-yl}-methanol