8-Glykoyl-1-methoxy-octahydro-4,6,9,10-tetramethyl-6-formyl-3a,9-propano-3aH-cyclopentacycloocten-5(4H)-on                                                                                                                                                              在
                                                                                                                                                                                 
sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 0.25h,
                                                                                                                以95%的产率得到8-Hydroxy-1-methoxy-octahydro-4,6,9,10-tetramethyl-3a,9-propano-3aH-cyclopentacycloocten-5(4H)-on