NOVEL PROCESS FOR PREPARATION OF IOPROMIDE
    10.
    发明申请
    NOVEL PROCESS FOR PREPARATION OF IOPROMIDE 审中-公开
    用于制备IOPROMIDE的新方法

    公开(公告)号:WO2009134030A1

    公开(公告)日:2009-11-05

    申请号:PCT/KR2009/001996

    申请日:2009-04-17

    CPC classification number: C07C231/02 C07C235/68

    Abstract: The present invention relates to a novel process for preparing iopromide which is used as a contrast agent for X-ray, wherein 5-methoxyacetylamino-2,4,6-triiodoisophthalic acid (2,3-diacetoxypropyl)amide chloride of formula (19) and 5-methoxyacetylamino-2,4,6-triiodoisophthalic acid [(2,3-dihydroxy-N-methylpropyl)-(2,3-diacetoxypropyl)]diamide of formula (20) are introduced as intermediates, by which a bismer by-product generated during the preparation process can be removed even without an additional removal procedure and thus iopromide with high purity can be prepared in high yield.

    Abstract translation: 本发明涉及用作X射线造影剂的碘普罗胺的新方法,其中式(19)的5-甲氧基乙酰氨基-2,4,6-三碘代间苯二甲酸(2,3-二乙酰氧基丙基)酰胺氯 和作为中间体的式(20)的5-甲氧基乙酰氨基-2,4,6-三碘间苯二甲酸[(2,3-二羟基-N-甲基丙基) - (2,3-二乙酰氧基丙基)] - 二酰胺作为中间体, 在制备过程中产生的产物即使没有另外的去除程序也可以被除去,因此可以以高产率制备高纯度的碘普罗胺。

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