Novel processes for preparing substantially pure anastrozole
    3.
    发明申请
    Novel processes for preparing substantially pure anastrozole 审中-公开
    用于制备基本上纯的阿那曲唑的新方法

    公开(公告)号:US20060035950A1

    公开(公告)日:2006-02-16

    申请号:US11199226

    申请日:2005-08-09

    IPC分类号: C07D249/08 A61K31/4196

    摘要: The present invention provides novel processes for purifying anastrozole, devoid of using liquid chromatography. The purification processes are via the isolated anastrozole salt forms, either by crystallization or by selective acidic extractions, and optionally in both cases, converting the purified anastrozole salt to anastrozole base. Also provided is an improved process for the synthesis of anastrozole, which is obtained by alkylating the isolated and purified starting material 3,5-bis(2-cyanoprop-2-yl)benzylbromide, the process being devoid of using toxic, hazardous and environmental unfriendly solvents and reagents.

    摘要翻译: 本发明提供了不使用液相色谱法纯化阿那曲唑的新方法。 纯化过程通过分离的阿那曲唑盐形式,通过结晶或通过选择性酸性提取,并且任选地在两种情况下,将纯化的阿那曲唑盐转化成阿那曲唑碱。 还提供了用于合成阿那曲唑的改进方法,其通过将分离和纯化的起始物质3,5-双(2-氰基丙-2-基)苄基溴化物烷基化而获得,该方法没有使用有毒,危险和环境 不友好的溶剂和试剂。