(3aR,4S,8S,9S,9aS,9bR)-8-hydroxy-6,9-dimethyl-2-oxo-2,3,3a,4,5,7,8,9,9a,9b-decahydroazuleno[4,5-b]furan-4-yl acetate                                                                                                                                                              在
                                                                                                                                                                                 
sodium bromate   、                                                                                                  
sodium hydrogensulfite                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
水   、                                                                                         
乙腈                                                                                  为溶剂,
                                                                                                                                                    反应 48.0h,
                                                                                                                以80%的产率得到(3aR,4S,6R,6aS,8S,9S,9aR,9bS)-8-hydroxy-6,9-dimethyl-6,6a-epoxy-2-oxo-2,3,3a,4,5,7,8,9,9a,9b-decahydroazuleno[4,5-b]furan-4-yl acetate