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    • 5. 发明申请
    • CRYSTALLIZATION METHOD FOR BENZPHETAMINE
    • 苯并咪唑的结晶方法
    • WO2006060099A1
    • 2006-06-08
    • PCT/US2005/039448
    • 2005-11-02
    • MALLINCKRODT INC.KALOTA, Dennis, J.TOMAZI, Keith, G.
    • KALOTA, Dennis, J.TOMAZI, Keith, G.
    • C07C209/84C07C211/27
    • C07C209/84C07C211/27
    • There is disclosed a method for the crystallization of benzphetamine hydrochloride from an organic medium by the steps of removing water from the system to a very low level and then reducing the temperature of the organic medium to provide crystallization of the acid salt. In the event that crystallization does not occur upon lowering the temperature of the medium, it has been discovered that gentle heating of the organic medium results in crystallization of the acid salt. It has also been discovered that higher temperature crystallization has been provided by removal of methamphetamine from the composition. The crystalline benzphetamine hydrochloride can then be isolated by typical liquid/solid separation means such as filtration or centrifugation.
    • 公开了通过以下步骤从有机介质中结晶苯并特苯胺盐酸盐的方法:将水从体系中除去至非常低的水平,然后降低有机介质的温度以提供酸盐的结晶。 在降低介质温度时不发生结晶的情况下,发现有机介质的温和加热导致酸盐的结晶。 还已经发现,通过从组合物中除去甲基苯丙胺已经提供了较高温度的结晶。 然后可以通过典型的液体/固体分离方法如过滤或离心分离结晶苯并特苯胺盐酸盐。
    • 6. 发明申请
    • EXTRACTION OF ALKALOIDS FROM OPIUM
    • 从OPIUM提取碱性物质
    • WO2005123743A1
    • 2005-12-29
    • PCT/US2005/016512
    • 2005-05-06
    • MALLINCKRODT INC.TOMAZI, Keith, G.
    • TOMAZI, Keith, G.
    • C07D489/02
    • C07D489/02C07D217/20C07D221/22C07D491/04
    • A method for extracting at least one alkaloid from opium that includes dissolving opium in a solvent, heating the dissolved opium solution, cooling the dissolved opium solution, adjusting the pH of the dissolved opium solution with at least one first weak acid, filtering the dissolved opium solution to recover a filtrate; and then separating and purifying at least one alkaloid in the filtrate. Preferably, this includes an additional step of chilling the opium solution after adjusting the pH of the dissolved opium solution with at least one first acid. The preferred method for separating and purifying at least one alkaloid in the filtrate includes utilizing preparative liquid chromatography, however, solvent extraction and filtration can also be utilized.
    • 一种从鸦片中提取至少一种生物碱的方法,包括将鸦片溶解在溶剂中,加热溶解的鸦片溶液,冷却溶解的鸦片溶液,用至少一种第一弱酸调节溶解的鸦片溶液的pH,过滤溶解的鸦片 溶液回收滤液; 然后分离和纯化滤液中的至少一种生物碱。 优选地,这包括在用至少一种第一酸调节溶解的鸦片溶液的pH后冷却鸦片溶液的另外的步骤。 用于分离和纯化滤液中至少一种生物碱的优选方法包括采用制备型液相色谱法,然而也可以使用溶剂萃取和过滤。