Process employing controlled crystallization in forming crystals of a pharmaceutical
    2.
    发明申请
    Process employing controlled crystallization in forming crystals of a pharmaceutical 审中-公开
    在形成药物晶体中采用受控结晶的方法

    公开(公告)号:US20050256314A1

    公开(公告)日:2005-11-17

    申请号:US11119551

    申请日:2005-05-02

    CPC分类号: C07D213/42 C07D263/32

    摘要: A process is provided which employs reactive controlled crystallization to produce drug substance having desirable crystal properties which process involves providing reactants A and B in liquid or solution form and adding reactant B to reactant A using a cubic or incremental addition technique to control extent of reaction and thus crystallization kinetics, including supersaturation and nucleation, to produce crystals of drug substance which are generally larger, better quality and with few fines and narrow particle size distribution than normally obtainable employing prior art crystallization techniques. In addition, crystals of drug substance produced by the above process is also provided.

    摘要翻译: 提供了一种方法,其采用反应性控制结晶以产生具有所需晶体性质的药物物质,该方法涉及提供液体或溶液形式的反应物A和B,并使用立方或增量添加技术将反应物B加入到反应物A中以控制反应程度, 因此结晶动力学,包括过饱和和成核,以产生药物物质的晶体,其通常比通常可采用现有技术结晶技术可获得的更大,更好的质量和更少的细粉和窄的粒度分布。 此外,还提供了通过上述方法生产的药物晶体。