(1R,4S,7S,8R,9R,10aR)-8,9-Diacetoxy-4-hydroxy-1,4a,7-trimethyl-7-vinyl-1,2,3,4,4a,5,6,7,8,9,10,10a-dodecahydro-phenanthrene-1-carboxylic acid methyl ester                                                                                                                                                              在
                                                                                                                                         
platinum(IV) oxide                                                                                                                                                                                                                               氢气                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
乙醇                                                                                  为溶剂,
                                                                                                                                                            25.0 ℃
                                                                                                                            、101.32 kPa
                                                                                条件下,
                                                                                                                                                    生成                                                 (1R,4S,7R,8R,9R,10aR)-8,9-Diacetoxy-7-ethyl-4-hydroxy-1,4a,7-trimethyl-1,2,3,4,4a,5,6,7,8,9,10,10a-dodecahydro-phenanthrene-1-carboxylic acid methyl ester