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    • 4. 发明申请
    • PROCESS FOR HIGH YIELD PRODUCTION OF CLOPIDOGREL BY RACEMIZATION OF RESIDUAL LIQUID
    • 通过残留液体重组制备高效液相色谱法的方法
    • WO2008018779A1
    • 2008-02-14
    • PCT/KR2007/003868
    • 2007-08-13
    • SK CHEMICALS CO., LTD.KIM, Nam HoLEE, Jin YoungKIM, Jae-SunLEE, Nam Kyu
    • KIM, Nam HoLEE, Jin YoungKIM, Jae-SunLEE, Nam Kyu
    • C07D495/04
    • C07D495/04Y02P20/582
    • The present invention relates to a process for preparing S-(+)-clopidogrel in high yield by means of racemization of filtrate, and particularly to a process comprising (a) conducting an optical resolution by converting racemic carboxylic acid of clopidogrel to diastereomer salt using (+)-cinchonine, (b) preparing carboxylic acid of S-(+)-clopidogrel by extraction using an appropriate solvent under an acidic condition, (c) preparing optically pure S-(+)-clopidogrel by reacting the carboxylic acid of S-(+)-clopidogrel with methanol, wherein a filtrate, which remains after collecting the diastereomer salt as solid precipitates, is recycled after being converted to a racemic carboxylic acid of clopidogrel via racemization under a basic condition, thereby maximizing the yield of S-(+)-clopidogrel.
    • 本发明涉及通过滤液的外消旋化制备S - (+) - 氯吡格雷的方法,特别涉及一种方法,其包括(a)通过将氯吡格雷的外消旋羧酸转化为非对映体盐进行光学拆分,该方法使用 (+) - 辛可宁,(b)通过在酸性条件下使用适当的溶剂进行萃取来制备S - (+) - 氯吡格雷的羧酸,(c)通过使光学纯的S - (+) - 氯吡格雷 S - (+) - 氯吡格雷与甲醇,其中在收集非对映异构体盐作为固体沉淀物后保留的滤液在通过基本条件下通过外消旋化转化为氯吡格雷的外消旋羧酸后被再循环,从而最大化S - (+) - 氯吡格雷。
    • 7. 发明申请
    • IMPROVED PREPARING METHOD OF (S)-OMEPRAZOLE FROM OMEPRAZOLE RACEMATE USING OPTICAL RESOLUTION AGENT
    • 使用光学分解剂改进从奥美拉唑的(S) - 甲基吡咯的制备方法
    • WO2009145368A1
    • 2009-12-03
    • PCT/KR2008/002961
    • 2008-05-27
    • SK CHEMICALS CO., LTD.KIM, Jae-SunLEE, Jin YoungKIM, Sun HoKIM, Nam hoLEE, Nam KyuPARK, Eun JuKUM, Do Seung
    • KIM, Jae-SunLEE, Jin YoungKIM, Sun HoKIM, Nam hoLEE, Nam KyuPARK, Eun JuKUM, Do Seung
    • C07D401/12C07D277/30A61K31/415A61K31/44
    • C07D401/12
    • The present invention relates to an improved preparing method of ( S )-omeprazole from omeprazole racemate. In an exemplary embodiment, the preparing method according to the present invention comprises the steps of: a) reacting omeprazole racemate with optically active diethyl-D-tartrate and a titanium compound in an alcohol solvent to prepare an omeprazole racemic complex; b) reacting the omeprazole racemic complex with 1.5-3.0 molar equivalents of ( S )-(+)-mandelic acid as optical resolution agent to prepare an optically active ( S )-omeprazole complex; and c) dissociating the optically active ( S) -omeprazole complex with a basic solution to prepare an ( S )-omeprazole free base or reacting the ( S )- omeprazole free base with a metal salt to transfer to a metal salt or a metal salt hydrate of ( S )- omeprazole. With optical purity of 99.0 %ee or better, the ( S )-omeprazole, the metal salt thereof or the hydrate thereof prepared in accordance with the present invention is useful as a medicinal material.
    • 本发明涉及一种改善奥美拉唑外消旋物(S) - 奥美拉唑的制备方法。 在一个示例性实施方案中,根据本发明的制备方法包括以下步骤:a)使奥美拉唑外消旋物与光学活性的D-酒石酸二乙酯和钛化合物在醇溶剂中反应以制备奥美拉唑外消旋体; b)将奥美拉唑外消旋配合物与1.5-3.0摩尔当量的(S) - (+) - 扁桃酸作为光学拆分剂反应,制备光学活性(S) - 奥美拉唑复合物; 和c)用碱性溶液解离光学活性(S) - 奥美拉唑复合物以制备(S) - 奥美拉唑游离碱或使(S) - 奥美拉唑游离碱与金属盐反应转移至金属盐或金属 (S) - 奥美拉唑盐水合物。 光学纯度为99.0%ee或更好,根据本发明制备的(S) - 奥美拉唑,其金属盐或其水合物可用作药用材料。