Benzoic acid (2R,3S,4S,5R,6R)-3,5-bis-benzyloxy-2-benzyloxymethyl-6-[(2S,3S,4R,5R,6S)-4,5-bis-benzyloxy-6-(5-benzyloxycarbonylamino-pentyloxy)-2-methyl-tetrahydro-pyran-3-yloxy]-tetrahydro-pyran-4-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
甲醇   、                                                                                                  
sodium methylate                                                                                                                                  作用下,
                                                                                                                                                                                        反应 168.0h,
                                                                                                                以88%的产率得到{5-[(2S,3R,4R,5S,6S)-3,4-Bis-benzyloxy-5-((2R,3R,4S,5R,6R)-3,5-bis-benzyloxy-6-benzyloxymethyl-4-hydroxy-tetrahydro-pyran-2-yloxy)-6-methyl-tetrahydro-pyran-2-yloxy]-pentyl}-carbamic acid benzyl ester