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    • 3. 发明公开
    • METHOD OF PREPARING CLOPIDOGREL 1,5-NAPHTHALENEDISULFONATE AND HYDRATE THEREOF
    • 氯萘酚1,5-萘硫代磺酸盐及其水合物的制备方法
    • KR20070095646A
    • 2007-10-01
    • KR20060026110
    • 2006-03-22
    • HANMI PHARM IND CO LTD
    • KIM EUN SOOKYUN SANG MINSUH KWEE HYUNLEE GWAN SUN
    • C07D495/04
    • C07D495/04
    • A method for preparing clopidogrel 1,5-naphthalenedisulfonate or a hydrate thereof is provided to conveniently mass-produce the desired product with excellent stability from a conventional acid-added salt of clopidogrel using a neutral disodium salt of 1,5-naphthalene disulfonic acid. A method for preparing clopidogrel 1,5-naphthalenedisulfonate represented by the formula(1) or a hydrate thereof comprises a step of performing a salt conversion reaction of an acid-added salt of clopidogrel represented by the formula(2) and a disodium salt of 1,5-naphthalene disulfonic acid represented by the formula(3) in the presence of water or a mixture of water and an organic solvent such as methanol, ethanol, isopropanol and acetone, wherein HX is an acid forming the acid-added salt with the clopidogrel(wherein the naphthalene disulfonic acid is excluded) and 0.45-0.7 mol of the disodium salt of 1,5-naphthalene disulfonic acid is used regarding 1 mol of the clopidogrel included in the acid-added salt.
    • 提供制备氯吡格雷1,5-萘二磺酸盐或其水合物的方法,以方便地使用1,5-萘二磺酸的中性二钠盐从常规的氯酸格酸加酸盐中大量生产具有优异稳定性的所需产物。 由式(1)表示的氯吡格雷1,5-萘二磺酸盐或其水合物的制备方法包括以式(2)表示的氯吡格雷的酸加成盐和式(2)所示的二钠盐的盐转化反应 由式(3)表示的1,5-萘二磺酸在水或水与有机溶剂如甲醇,乙醇,异丙醇和丙酮的混合物存在下,其中HX是形成酸加成盐的酸, 对于1摩尔含酸盐中所含的氯吡格雷,使用氯吡格雷(其中不包括萘二磺酸)和0.45-0.7摩尔的1,5-萘二磺酸的二钠盐。