Preparation of asymmetric cyclic ureas using an alkali metal in liquid
ammonia process
    1.
    发明授权
    Preparation of asymmetric cyclic ureas using an alkali metal in liquid ammonia process 失效
    在液氨工艺中使用碱金属制备不对称环脲

    公开(公告)号:US05998614A

    公开(公告)日:1999-12-07

    申请号:US110550

    申请日:1998-07-06

    IPC分类号: C07D243/04 C07D491/04

    CPC分类号: C07D491/04 C07D243/04

    摘要: The present invention describes a method for the preparation of asymmetric N,N'-disubstituted cyclic ureas through the selective monodebenzylation of symmetric N,N'-disubstituted cyclic ureas using a dissolving metal reduction. The intermediates can be alkylated to give compounds which are useful as HIV protease inhibitors for the treatment of HIV infection.

    摘要翻译: 本发明描述了通过使用溶解金属还原的对称N,N'-二取代环脲的选择性单脱氧烷基化制备不对称N,N'-二取代环脲的方法。 可以将中间体烷基化以得到可用作HIV蛋白酶抑制剂用于治疗HIV感染的化合物。