申请人:——
公开号:US20030109721A1
公开(公告)日:2003-06-12
The present invention relates to a process for the synthesis of oxandrolone from mestanolone. The process comprises the steps of: (a) oxidizing mestanolone to form 17&bgr;-hydroxy-17&agr;-methyl-5&agr;-androst-1-en-3-one; (b) hydroxylating the 17&bgr;-hydroxy-17&agr;-methyl-5&agr;-androst-1-en-3-one to form 1&agr;,2&agr;,17&bgr;-trihydroxy-17&agr;-methylandrostan-3-one; (c) cleaving the 1&agr;,2&agr;,17&bgr;-trihydroxy-17&agr;-methylandrostan-3-one to form 17&bgr;-hydroxy-17&agr;-methyl-1-oxo-1,2,-seco-A-nor-5&agr;-androstan-2-oic acid; and (d) reducing the 17&bgr;-hydroxy-17&agr;-methyl-1-oxo-1,2,-seco-A-nor-5&agr;-androstan-2-oic acid to form oxandrolone.
该发明涉及一种从甲基雄酮合成奥沙酮的过程。该过程包括以下步骤:(a)将甲基雄酮氧化形成17β-羟基-17α-甲基-5α-雄烷-1-烯-3-酮;(b)将17β-羟基-17α-甲基-5α-雄烷-1-烯-3-酮羟基化形成1α,2α,17β-三羟基-17α-甲基雄烷-3-酮;(c)将1α,2α,17β-三羟基-17α-甲基雄烷-3-酮裂解形成17β-羟基-17α-甲基-1-酮-1,2,-去氧-A-诺-5α-雄烷-2-酸;(d)将17β-羟基-17α-甲基-1-酮-1,2,-去氧-A-诺-5α-雄烷-2-酸还原形成奥沙酮。