Process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives
    2.
    发明授权
    Process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives 失效
    获得水杨酸衍生物的(硝基甲基)苯基酯的方法

    公开(公告)号:US06696591B1

    公开(公告)日:2004-02-24

    申请号:US10019316

    申请日:2002-01-09

    IPC分类号: C07C20304

    摘要: A process for obtaining (nitroxymethyl)phenyl esters of salicylic acid derivatives of formula (I) wherein R1 is the OCOR3 group characterized in that it comprises the following steps: a) reaction of a halide of a salicylic acid derivative with hydroxybenzylacohol in the presence of a base: b) nutration of the obtained product in anhydrous conditions by a mixture of nitric acid with a different inorganic acid, or an organic acid, or an anhydride of one or two organic acids: c) recovery of the final product.

    摘要翻译: 一种获得式(I)的水杨酸衍生物(R 1为OCOR 3基团)的(硝基甲基)苯基酯的方法,其特征在于其包括以下步骤:a)水杨酸衍生物的卤化物与羟基苄基羟基醇在 碱:b)通过硝酸与不同无机酸或有机酸或一种或两种有机酸的酸酐的混合物在无水条件下使得到的产物营养化:c)回收最终产物。

    Process for the preparation of 4-(6'-methoxy-2'-naphthyl) butan-2-one
    3.
    发明授权
    Process for the preparation of 4-(6'-methoxy-2'-naphthyl) butan-2-one 失效
    4-(6'-甲氧基-2'-萘基)丁-2-酮的制备方法

    公开(公告)号:US5955635A

    公开(公告)日:1999-09-21

    申请号:US065972

    申请日:1998-04-24

    摘要: An improved process for the preparation of Nabumetone, which comprises the following steps:a) condensation between 6-methoxy-naphthaldehyde I and t-butyl acetoacetate II, to give 3-t-butoxycarbonyl-4-(6'-methoxy-2'-naphthyl)-but-3-en-2-one III as an E/Z mixture;b) hydrogenation of III in the presence of a palladium catalyst, to give 3-t-butoxycarbonyl-4-(6'-methoxy-2-naphthyl)-butan-2-one IV;c) cleavage of the t-butyl ester by acid catalysis; andd) recrystallization of the crude with methanol.

    摘要翻译: 一种改进的Nabumetone制备方法,其包括以下步骤:a)6-甲氧基 - 萘甲醛I和乙酰乙酸叔丁酯II之间的缩合,得到3-叔丁氧基羰基-4-(6'-甲氧基-2' - 萘基) - 丁-3-烯-2-酮III作为E / Z混合物; b)在钯催化剂存在下氢化III,得到3-叔丁氧基羰基-4-(6'-甲氧基-2-萘基) - 丁-2-酮IV; c)通过酸催化裂解叔丁酯; 和d)用甲醇重结晶粗品。

    PROCESS FOR THE PREPARATION OF CROSS-LINKED POLYALLYLAMINES OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF
    5.
    发明申请
    PROCESS FOR THE PREPARATION OF CROSS-LINKED POLYALLYLAMINES OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF 审中-公开
    制备交联聚乙烯胺或其药学上可接受的盐的方法

    公开(公告)号:US20120196988A1

    公开(公告)日:2012-08-02

    申请号:US13362495

    申请日:2012-01-31

    IPC分类号: C08J3/24 C08G73/02

    摘要: The present invention relates to a process for the preparation of cross-linked polyallylamines or pharmaceutically acceptable salts thereof.The invention further relates to a process for the preparation of Sevelamer or pharmaceutically acceptable salts thereof, preferably hydrochloride or carbonate salts, used in the treatment of hyperphosphatemia, and having good flowability, low porosity and/or a swelling index of between 7 and 9.

    摘要翻译: 本发明涉及制备交联聚烯丙胺或其药学上可接受的盐的方法。 本发明进一步涉及用于治疗高磷酸盐血症,具有良好流动性,低孔隙率和/或膨胀指数在7至9之间的塞维拉姆或其药学上可接受的盐,优选盐酸盐或碳酸盐的制备方法。

    Process for the preparation of naproxene nitroxyalkylesters
    6.
    发明授权
    Process for the preparation of naproxene nitroxyalkylesters 有权
    制备萘普生硝基烷基酯的方法

    公开(公告)号:US07238829B2

    公开(公告)日:2007-07-03

    申请号:US10625558

    申请日:2003-07-24

    IPC分类号: C07C203/10

    CPC分类号: C07C201/02 C07C203/04

    摘要: A process for obtaining nitroxyalklesters of the 2(S)(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6 methoxy-2-naphthyl)propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert organic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.

    摘要翻译: 一种获得具有高于或等于95%,优选高于或等于98%的对映异构体过量的2(S)(6-甲氧基-2-萘基) - 丙酸的硝基螺旋体的方法,其特征在于, 其中A是酸酰基残基的式A-Hal的2-(S) - (6甲氧基-2-萘基)丙酸在惰性有机溶剂中与脂族硝基链烷醇HO-Y-ONO 2,其中Y是C 2 -C 20亚烷基或3至8个碳原子的亚环烷基,或如所定义的含有如所定义的亚环烷基的亚烷基 在无机碱存在下进行。

    Process for the preparation of naproxene nitroxyalkylesters
    7.
    发明授权
    Process for the preparation of naproxene nitroxyalkylesters 有权
    制备萘普生硝基烷基酯的方法

    公开(公告)号:US06700011B1

    公开(公告)日:2004-03-02

    申请号:US10031412

    申请日:2002-01-18

    IPC分类号: C07C20304

    CPC分类号: C07C201/02 C07C203/04

    摘要: A process for obtaining nitroxyalkylesters of the 2-(S)-(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6-methoxy-2-naphthyl)-propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert organic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.

    摘要翻译: 一种获得具有高于或等于95%,优选高于或等于98%的对映体过量的2-(S) - (6-甲氧基-2-萘基) - 丙酸的硝基烷基酯的方法,其特征在于, 其中A是酸酰基残基的式A-Hal的2-(S) - (6-甲氧基-2-萘基) - 丙酸的卤化物在惰性有机溶剂中与脂族硝基链烷醇HO-Y- ONO 2,其中Y是C 3 -C 20亚烷基或3至8个碳原子的亚环烷基,或在无机碱存在下含有如定义的亚环烷基的亚烷基。

    Process for the preparation of naproxene nitroxyalkylesters
    8.
    发明申请
    Process for the preparation of naproxene nitroxyalkylesters 有权
    制备萘普生硝基烷基酯的方法

    公开(公告)号:US20050119339A1

    公开(公告)日:2005-06-02

    申请号:US10625558

    申请日:2003-07-24

    CPC分类号: C07C201/02 C07C203/04

    摘要: A process for obtaining nitroxyalklesters of the 2(S)(6-methoxy-2-naphthyl)-propanoic acid having an enantiomeric excess higher than or equal to 95%, preferably higher than or equal to 98%, characterized in that an halide of the 2-(S)-(6 methoxy-2-naphthyl)propanoic acid of formula A-Hal, wherein A is the acid acyl residue, is reacted in an inert orgariic solvent with an aliphatic nitroxyalkanol HO—Y—ONO2, wherein Y is a C2-C20 alkylene or a cycloalkylene from 3 to 8 carbon atoms, or an alkylene as defined containing a cycloalkylene as defined, in the presence of an inorganic base.

    摘要翻译: 一种获得具有高于或等于95%,优选高于或等于98%的对映异构体过量的2(S)(6-甲氧基-2-萘基) - 丙酸的硝基螺旋体的方法,其特征在于, 其中A是酸酰基残基的式A-Hal的2-(S) - (6-甲氧基-2-萘基)丙酸在惰性溶剂中与脂族硝基链烷醇HO-Y-ONO 2,其中Y是C 2 -C 20亚烷基或3至8个碳原子的亚环烷基,或如所定义的含有如所定义的亚环烷基的亚烷基 在无机碱存在下进行。