((3aS,5S,6R,7R,7aR)-6-Hydroxy-5-methoxy-7a-methyl-2-oxo-hexahydro-pyrano[2,3-d]oxazol-7-yl)-methyl-carbamic acid benzyl ester                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 18.0h,
                                                                                                                以15 mg的产率得到(3aS,5S,6R,7R,7aR)-6-Hydroxy-5-methoxy-7a-methyl-7-methylamino-hexahydro-pyrano[2,3-d]oxazol-2-one