(1R,4aR,6R,7R,8R,8aS)-8-Hydroxy-2,3,4a,6,7,8a-hexamethyl-4,4a,6,7,8,8a-hexahydro-1H-1,7-cyclo-naphthalen-5-one                                                                                                                                                              在
                                                                                                                                                                                 
pyridinium chlorochromate                                                                                                                                  作用下,
                                                                                                                                                                                        反应 3.0h,
                                                                                                                以92%的产率得到(1R,4aR,6R,7R,8aS)-2,3,4a,6,7,8a-Hexamethyl-1,4,4a,6,7,8a-hexahydro-1,7-cyclo-naphthalene-5,8-dione