三甲基氯硅烷   、                                                                                      Acetic acid (R)-1,1,2-trimethyl-5-((3S,5R,6R,8S,9S,10R,12R,13R,14S,17R)-3,5,6,12-tetrahydroxy-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-hexyl ester                                                                                                                                                              在
                                                                                                                                                                                 
N,O-双三甲硅基乙酰胺                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
吡啶                                                                                  为溶剂,
                                                                                                                                                                                        生成                                                 
Acetic acid (R)-5-((3S,5R,6R,8S,9S,10R,12R,13R,14S,17R)-5-hydroxy-10,13-dimethyl-3,6,12-tris-trimethylsilanyloxy-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-1,1,2-trimethyl-hexyl ester