The preparation of 15α-hydroxytestosterone (5) and 15α-hydroxyandrostenedione (11) was carried out employing 17β-tert-butyldimethylsilyloxy-6β-methoxy-3α, 5-cyclo-5α-androstan-15α-ol (1) as a key intermediate. In a similar fashion the 15α-hydroxylated 5α-androstane derivatives (20, 22, 26) were also synthesized. The utilization of tertbutyldimethylsilylation for protecting the hydroxyl group in the preparation of the desired compounds has been demonstrated.
                                    以 17β- 叔丁基二甲基
硅氧基-6β-甲氧基-3α,5-环-5α-
雄甾烷-15α-醇(1)为关键中间体,制备了 15α-羟基
睾酮(5)和 15α-羟基
雄烯二酮(11)。类似的方法还合成了 15α- 羟基化的 5α 雄烷衍
生物(20、22、26)。在制备所需化合物的过程中,利用叔丁基二甲基
硅烷化来保护羟基的方法已得到证实。