METHOD FOR PURIFYING 4-(NITROOXY)BUTYL(2S)-2-(6-METHOXY-2-NAPHTHYL)PROPANOATE
    4.
    发明申请
    METHOD FOR PURIFYING 4-(NITROOXY)BUTYL(2S)-2-(6-METHOXY-2-NAPHTHYL)PROPANOATE 审中-公开
    4-(硝基)丁基(2S)-2-(6-甲氧基-2-萘基)丙酸酯的方法

    公开(公告)号:WO2009153668A3

    公开(公告)日:2010-02-11

    申请号:PCT/IB2009006382

    申请日:2009-06-18

    IPC分类号: C07C203/04

    CPC分类号: C07C203/04 C07C201/02

    摘要: The present invention relates to a method for purifying naproxcinod comprising the steps of : a) dissolving or dispersing a mixture containing naproxcinod in an amount higher than 90% by weight in a solvent; b) cooling the solution or two phases dispersion under stirring to a temperature ranging from -20°C to 10°C c) optionally seeding the solution with crystals of naproxcinod d) stirring, by maintaining the temperature in the range from - 40°C to 10°C e) collecting the formed solid by maintaining the temperature under 15°C A further object of the invention is a crystalline form of naproxcinod.

    摘要翻译: 本发明涉及一种纯化萘普生的方法,包括以下步骤:a)在溶剂中将含有高于90重量%的萘普生的混合物溶解或分散; b)在搅拌下将溶液或两相分散体冷却至-20℃至10℃的温度; c)任选地用萘普生染料的晶体接种该溶液d)通过将温度保持在-40℃的范围内进行搅拌 e)通过将温度保持在15℃以下收集所形成的固体本发明的另一个目的是萘普生的结晶形式。