Acetic acid (2R,3S,4S,5R,6R)-5-acetoxy-2-acetoxymethyl-4-cyanomethoxy-6-octyloxy-tetrahydro-pyran-3-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 12.0h,
                                                                                                                以92%的产率得到((2R,3S,4S,5R,6R)-3,5-Dihydroxy-2-hydroxymethyl-6-octyloxy-tetrahydro-pyran-4-yloxy)-acetic acid