Acetic acid (3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-((E)-(S)-1-methyl-3-piperidin-1-yl-allyl)-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester                                                                                                                                                              在
                                                                                                                                                                                 
吡啶   、                                                                                                  sodium tetrahydroborate   、                                                                                                  
水                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                    反应 46.5h,
                                                                                                                生成                                                 
Acetic acid (3S,8S,9S,10R,13R,14S,17R)-17-((1S,2R)-2-methanesulfonyloxymethyl-1-methyl-pent-4-enyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester