Highly pure modafinil
    87.
    发明申请
    Highly pure modafinil 有权
    高纯度莫达非尼

    公开(公告)号:US20050038124A1

    公开(公告)日:2005-02-17

    申请号:US10947228

    申请日:2004-09-23

    摘要: The present invention provides an improved process for preparing modafinil, whereby it may be isolated in high purity by a single crystallization. The process produces modafinil free of sulphone products of over-oxidation and other byproducts. The invention further provides new crystalline Forms II-VI of modafinil and processes for preparing them. Each of the new forms is differentiated by a unique powder X-ray diffraction pattern. The invention further provides pharmaceutical compositions containing novel modafinil Forms II-IV and VI.

    摘要翻译: 本发明提供了一种制备莫达非尼的改进方法,从而可以通过单一结晶将其高纯度地分离出来。 该方法产生不含过氧化和其他副产物的砜类产物的莫达非尼。 本发明进一步提供了莫达非尼的新的晶型II-VI及其制备方法。 每种新形式都可以通过独特的粉末X射线衍射图进行区分。 本发明进一步提供了含有新型莫达非尼形式II-IV和VI的药物组合物。