(3S,8R,9S,10R,13S,14S)-10,13,16,16-Tetramethyl-3-(tetrahydro-pyran-3-yloxy)-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydro-cyclopenta[a]phenanthren-17-one                                                                                                                                                              在
                                                                                                                                                                                 
盐酸                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 6.0h,
                                                                                                                以24%的产率得到(3S,8R,9S,10R,13S,14S)-3-Hydroxy-10,13,16,16-tetramethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydro-cyclopenta[a]phenanthren-17-one