Acetic acid (2R,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-3-methylene-hexadecahydro-cyclopenta[a]phenanthren-2-yl ester                                                                                                                                                              在
                                                                                                                                         
platinum(IV) oxide                                                                                                                                                                                                                               氢气                                                                                                                                  作用下,
                                                                                                                                                                                                                            生成                                                 
Acetic acid (2R,3S,5S,8R,9S,10S,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-3,10,13-trimethyl-hexadecahydro-cyclopenta[a]phenanthren-2-yl ester