CRYSTALLINE FORMS OF KINASE INHIBITORS
    4.
    发明申请
    CRYSTALLINE FORMS OF KINASE INHIBITORS 审中-公开
    激酶抑制剂的晶体形式

    公开(公告)号:WO2011156464A8

    公开(公告)日:2012-10-11

    申请号:PCT/US2011039591

    申请日:2011-06-08

    CPC classification number: C07D495/04

    Abstract: Citrate salts of N-(4-{4-amino-7-[1-(2-hydroxyethyl)-1H-pyrazol-4-yl]thieno[3,2-c]pyridin-3-yl}phenyl)-N'-(3-fluorophenyl)urea and crystalline forms thereof are suitable pharmaceutical ingredients for pharmaceutical compositions useful in the treatment of disease, for example, cancer.

    Abstract translation: 噻吩并[3,2-c]吡啶-3-基}苯基)-N(4- {4-氨基-7- [1-(2-羟乙基)-1H-吡唑-4-基] ' - (3-氟苯基)脲及其结晶形式是用于治疗疾病例如癌症的药物组合物的合适的药物成分。

    METHOD FOR EVALUATING THE SOLUBILITY OF A CRYSTALLINE SUBSTANCE IN A POLYMER
    8.
    发明申请
    METHOD FOR EVALUATING THE SOLUBILITY OF A CRYSTALLINE SUBSTANCE IN A POLYMER 审中-公开
    评估聚合物中晶体物质的溶解性的方法

    公开(公告)号:WO2009135799A2

    公开(公告)日:2009-11-12

    申请号:PCT/EP2009/055233

    申请日:2009-04-29

    CPC classification number: G01N33/15 G01N25/4866

    Abstract: A viable strategy to enhance the bioavailability of poorly soluble drugs is to use amorphous solids in place of the more commonly used crystalline solids in pharmaceutical formulations. However, amorphous solids are physically meta-stable and tend to revert back to their crystalline counterpart. An effective approach to stabilizing an amorphous drug against crystallization is to disperse it in a polymer matrix. The drug's solubility in the chosen polymer defines the upper limit of drug loading without any risk of crystallization. Measuring the solubility of a drug in a polymer has been a scientific and technological challenge because the high viscosity of polymers makes achieving solubility equilibrium difficult and because pharmaceutically important drug/polymer dispersions are glasses, which undergo structural relaxation over time. The invention provides a method based on Differential Scanning Calorimetry (DSC) for measuring the solubility of crystalline drugs in polymeric matrices. The method relies on the detection of the dissolution endpoint of a drug/polymer mixture prepared by cryomilling.

    Abstract translation: 提高难溶性药物的生物利用度的可行策略是使用无定形固体代替药物制剂中更常用的结晶固体。 然而,无定形固体物理上是元稳定的,并且倾向于回复到它们的结晶对应物。 稳定无定形药物抗结晶的有效方法是将其分散在聚合物基质中。 药物在所选聚合物中的溶解度限定了药物负载的上限,而没有结晶的风险。 测量药物在聚合物中的溶解度已经是科学和技术挑战,因为聚合物的高粘度使得难以实现溶解度平衡,并且因为药物重要的药物/聚合物分散体是随时间经历结构松弛的玻璃。 本发明提供了一种基于差示扫描量热法(DSC)测量结晶药物在聚合物基质中的溶解度的方法。 该方法依赖于通过冷冻法制备的药物/聚合物混合物的溶解终点的检测。

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