INDUSTRIAL METHOD FOR THE SYNTHESIS OF 17-ACETOXY-11beta-[4-(DIMETHYLAMINO)-PHENYL]-21-METHOXY-19-NORPREGNA-4,9-DIEN-3,20-DIONE AND THE KEY INTERMEDIATES OF THE PROCESS
    1.
    发明申请
    INDUSTRIAL METHOD FOR THE SYNTHESIS OF 17-ACETOXY-11beta-[4-(DIMETHYLAMINO)-PHENYL]-21-METHOXY-19-NORPREGNA-4,9-DIEN-3,20-DIONE AND THE KEY INTERMEDIATES OF THE PROCESS 有权
    合成17-乙酰氧基-11β-[4-(二甲基氨基) - 苯基] -2-甲氧基-19-壬基-4,9-二烯-3,20-二酮的工业方法及该方法的主要中间体

    公开(公告)号:US20100137622A1

    公开(公告)日:2010-06-03

    申请号:US12598163

    申请日:2008-06-19

    IPC分类号: C07J9/00

    摘要: The present invention relates to a process for the synthesis of the known 17-acetoxy-11-β-[4-(dimethyl amino)-phenyl]-21-methoxy-19-norpregna-4,9-dien-3,20-dione (further on CDB-4124) of formula (I) from 3,3-[1,2-ethandiyl-bis(oxy)]-oestr-5(10),9(11)-dien-17-one of formula (II). Compound CDB-4124 belongs to the group of anti-hormones. The process has the following steps: i) formation of an epoxide; ii) addition of hydrogen cyanide; iii) silylation of a hydroxyl group; iv) reaction with 4-(dimethylamino)-phenyl magnesium bromide Grignard reagent in the presence of CuCl (Teutsch reaction); v) silylation of a hydroxyl group with trimethyl chlorosilane; vi) reaction with diisobutyl aluminum hydride and after addition of acid to the reaction mixture; vii) methoxy-methylation with methoxy-methyl Grignard reagent formed in situ, while hydrolyzing the trimethylsilyl protective groups; viii) oxidation of a hydroxyl group with dicyclohexyl carbodiimide in the presence of dimethyl sulfoxide and a strong organic acid (Swern oxidation), and in given case after purification by chromatography; ix) acetylation of a hydroxyl group with acetic anhydride in the presence of perchloric acid, and in given case, purification by chromatography. The invention also relates to new intermediates of the process.

    摘要翻译: 本发明涉及合成已知的17-乙酰氧基-11-二 - [4-(二甲基氨基) - 苯基] -2-甲氧基-19-去甲基-4,9-二烯-3,20 (I)的3,3- [1,2-乙二基 - 双(氧基)] - 甲酯-5(10),9(11) - 二烯-17-酮(另外在CDB-4124上) 式(II)。 化合物CDB-4124属于抗激素类。 该方法具有以下步骤:i)形成环氧化物; ii)加入氰化氢; iii)羟基的甲硅烷基化; iv)在CuCl(Teutsch反应)存在下与4-(二甲基氨基) - 苯基溴化镁格氏试剂反应; v)用三甲基氯硅烷甲硅烷基化羟基; vi)与二异丁基氢化铝反应并向反应混合物中加入酸; vii)甲氧基甲基化与甲氧基甲基格氏试剂原位形成,同时水解三甲基甲硅烷基保护基; viii)在二甲基亚砜和强有机酸(Swern氧化)存在下,用二环己基碳二亚胺氧化羟基,在给定的情况下,通过色谱法纯化; ix)在高氯酸存在下用乙酸酐乙酰化羟基,在给定的情况下,通过色谱法纯化。 本发明还涉及该方法的新中间体。