3-((2S,3S,4R,5R,6R)-3-Azido-4,5-bis-benzyloxy-6-benzyloxymethyl-tetrahydro-pyran-2-yl)-2-methyl-propionic acid methyl ester                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate   、                                                                                                  nickel dichloride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        以51%的产率得到(2R,3R,4R,4aS,8aS)-3,4-Bis-benzyloxy-2-benzyloxymethyl-7-methyl-hexahydro-pyrano[3,2-b]pyridin-6-one