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    • 9. 发明申请
    • PROCESS FOR PREPARATION OF PURE POLYMORPHIC FORM 1 OF CLOPIDOGREL HYDROGENSULFATE
    • 棕榈酸水合物的纯多晶型1的制备方法
    • WO2008118030A1
    • 2008-10-02
    • PCT/PL2008/000023
    • 2008-03-19
    • KOZLUK, TomaszWOZNIAK, Robert
    • KOZLUK, TomaszWOZNIAK, Robert
    • C07D495/04
    • C07D495/04
    • Process for the preparation of substantially pure polymorphic Form 1 of clopidogrel hydrogensulfate, wherein the reaction of optically active clopidogrel base with sulfuric acid is carried out in the mixture of at least two solvents, chosen from group I, comprising aliphatic ethers, and from group II, comprising ketones, esters of C 1 -C 3 carboxylic acids and aliphatic alcohols C 1 -C 4 , primary, secondary and tertiary aliphatic alcohols C 1 -C 4 , then the resulting suspension is stirred until at least 70% of amorphous clopidogrel hydrogensulfate formed is transformed into polymorphic Form 1 of clopidogrel hydrogensulfate, and finally, the crystalline solid is isolated from the reaction mixture and subject to additional work-up procedure, aiming at the formation and stabilization of polymorphic Form 1.
    • 用于制备基本上纯的多晶型氯吡格雷硫酸氢盐形式1的方法,其中光学活性氯吡格雷碱与硫酸的反应在至少两种选自包含脂族醚的组I和II组的溶剂的混合物中进行 ,其包含酮,C 1 -C 3羧酸和脂族醇C 1 -C 4羧酸的酯, 伯,仲和叔脂肪族醇C 1 -C 4,然后将所得悬浮液搅拌直到形成的至少70%的无定形氯吡格雷硫酸氢盐转化为多晶型形式1的 氯吡格雷硫酸氢盐,最后,从反应混合物中分离出结晶固体,并进行额外的后处理,旨在形成和稳定多晶型物1。