(3'S,8'R,9'S,10'R,13'S,14'S)-13'-methylspiro[1,3-dioxolane-2,17'-2,3,4,7,8,9,10,11,12,14,15,16-dodecahydro-1H-cyclopenta[a]phenanthrene]-3'-ol                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  
硼烷四氢呋喃络合物   、                                                                                                  
双氧水   、                                                                                                  sodium hydroxide                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
[(3'S,5'S,6'S,8'R,9'S,10'R,13'S,14'S)-6'-hydroxy-13'-methylspiro[1,3-dioxolane-2,17'-2,3,4,5,6,7,8,9,10,11,12,14,15,16-tetradecahydro-1H-cyclopenta[a]phenanthrene]-3'-yl] acetate   、