Acetic acid (3aS,6aS,9aS,9bR)-6a-hydroxy-3,6,9a-trimethyl-2-oxo-2,3,3a,4,5,6,6a,9,9a,9b-decahydro-azuleno[4,5-b]furan-9-yl ester                                                                                                                                                              在
                                                                                                                                                                                 nickel boride                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
二乙二醇二甲醚                                                                                  为溶剂,
                                                                                                                                                                                        以30%的产率得到Acetic acid (3aS,9aS,9bR)-3,6,9a-trimethyl-2-oxo-2,3,3a,4,5,6,8,9,9a,9b-decahydro-azuleno[4,5-b]furan-9-yl ester