(5aR,6R,7R,8aR)-1-benzyl-5-p-toluenesulphonyl-1,3,3a,5a,6,7,8a,8b-octahydro-6,7-isopropylidenedioxy-4H-furo[2',3':5,6]pyrido[4,3-c]isoxazole                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
环己烯                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
吡啶   、                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 (2R,3R,3aR,6R,7S,7aR)-4-p-toluenesulphonyl-6-acetoxy-7-N-acetylamino-2,3,3a,6,7,7a-hexahydro-2,3-isopropylidenedioxy-5H-furo[3,2-b]pyridine