(3aR,5aR,5bS,8aS,9aR)-3-Isopropylidene-3a,5a-dimethyl-decahydro-dicyclopenta[a,d]pentalene-5,6-dione                                                                                                                                                              在
                                                                                                                                         palladium on activated charcoal                                                                                                                                                                                                                               
氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙酸乙酯                                                                                  为溶剂,
                                                                                                                                                    反应 20.0h,
                                                                                                                以80%的产率得到(3S,3aR,5aR,5bS,8aS,9aR)-3-Isopropyl-3a,5a-dimethyl-decahydro-dicyclopenta[a,d]pentalene-5,6-dione