(1R,3aS,3bR,5aS,10aS,10bR,12aS)-1-Ethynyl-12a-methyl-1,2,3,3a,3b,4,5,5a,6,8,10,10a,10b,11,12,12a-hexadecahydro-7,8-diaza-dicyclopenta[a,h]phenanthren-1-ol   、                                                                                      
甲基磺酰氯                                                                                                                                                              在
                                                                                                                                                                                 
吡啶                                                                                                                                  作用下,
                                                                                                                                                                                        反应 1.0h,
                                                                                                                以32%的产率得到(1R,3aS,3bR,5aS,10aS,10bR,12aS)-1-Ethynyl-8-methanesulfonyl-12a-methyl-1,2,3,3a,3b,4,5,5a,6,8,10,10a,10b,11,12,12a-hexadecahydro-7,8-diaza-dicyclopenta[a,h]phenanthren-1-ol