精胺   、                                                                                      
24-hydroxy-5α-cholestan-3-one                                                                                                                                                              在
                                                                                                                                                                                 sodium tetrahydroborate   、                                                                                                  3 A molecular sieve                                                                                                                                  作用下,
                                                                                                                以
                                                                                         
四氢呋喃   、                                                                                         
甲醇                                                                                  为溶剂,
                                                                                                                                                    反应 1.0h,
                                                                                                                生成                                                 (6R)-6-[(3R,5S,8R,9S,10S,13R,14S,17R)-3-[3-[4-(3-aminopropylamino)butylamino]propylamino]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptan-3-ol   、                                                                                             (6R)-6-[(3S,5S,8R,9S,10S,13R,14S,17R)-3-[3-[4-(3-aminopropylamino)butylamino]propylamino]-10,13-dimethyl-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl]-2-methylheptan-3-ol