X-ray contrast agents, compositions and methods
    12.
    发明授权
    X-ray contrast agents, compositions and methods 失效
    X射线造影剂,组合物和方法

    公开(公告)号:US5356613A

    公开(公告)日:1994-10-18

    申请号:US829026

    申请日:1992-05-08

    CPC分类号: A61K49/0433 C07C237/46

    摘要: The compound N-(2,3-dihydroxypropyl)-5-[N-(2-hydroxyethyl)-glycolamido]-N'-methyl-2,4,6-triiodoisophthalamide and similar such compounds may be used as x-ray contrast agents which are water-soluble, safe and in an aqueous solution are non-viscous. Methods of preparing N-(2,3-dihydroxypropyl)-5-[N-(2-hydroxyethyl)-glycolamido]-N'-methyl-2,4,6-triiodoisophthalamide and the analogous compounds are provided.

    摘要翻译: PCT No.PCT / US91 / 01827 Sec。 371日期:1992年5月8日 化合物N-(2,3-二羟基丙基)-5- [N-(2-羟乙基) - 乙酰氨基] -N'-甲基-2(1H, 4,6-三碘间苯二酰胺和类似的这样的化合物可以用作水溶性,安全的并且在水溶液中是非粘性的x射线造影剂。 提供制备N-(2,3-二羟基丙基)-5- [N-(2-羟乙基) - 乙酰氨基] -N'-甲基-2,4,6-三碘间苯二酰胺及其类似化合物的方法。

    Novel x-ray contrast agents, compositions and methods
    16.
    发明授权
    Novel x-ray contrast agents, compositions and methods 失效
    新型x射线造影剂,组合物和方法

    公开(公告)号:US5019371A

    公开(公告)日:1991-05-28

    申请号:US616495

    申请日:1990-11-21

    IPC分类号: A61K49/04 C07C237/46

    CPC分类号: C07C237/46 A61K49/0433

    摘要: The compound N-(2,3-dihydroxypropyl)-5-[N-(2-hydroxyethyl)-glycolamido]-N'-methyl-2,4,6-triiodoisophthalamide and similar such compounds may be used as x-ray contrast agents which are water-soluble, safe and in an aqueous solution are non-viscous. Methods of preparing N-(2,3-dihydroxypropyl)-5-[N-(2-hdyroxyethyl)glycolamido]-N'-methyl-2,4,6-triiodoisophthalamide are provided.

    摘要翻译: 化合物N-(2,3-二羟丙基)-5- [N-(2-羟乙基) - 乙酰氨基] -N'-甲基-2,4,6-三碘间苯二酰胺和类似的这类化合物可用作x射线对比 水溶性,安全性和在水溶液中的试剂是不粘的。 提供制备N-(2,3-二羟丙基)-5- [N-(2-羟基乙基)乙醇酰氨基] -N'-甲基-2,4,6-三碘间苯二酰胺的方法。

    Complex for enhancing magnetic resonance imaging
    18.
    发明授权
    Complex for enhancing magnetic resonance imaging 失效
    用于增强磁共振成像的复合物

    公开(公告)号:US4730066A

    公开(公告)日:1988-03-08

    申请号:US860064

    申请日:1986-05-06

    申请人: David H. White

    发明人: David H. White

    IPC分类号: A61K49/06 C07F11/00

    CPC分类号: A61K49/06 Y10T436/24

    摘要: Complexes of iron(II), iron(III), manganese(II), manganese(III), gadolinium(III) or chromium(III) and a compound of the formula: ##STR1## wherein m=2, 3, 4, or 5, are useful for enhancing magnetic resonance images of body organs and tissues, such as magnetic resonance images of the hepatobiliary system. An illustrative complex of this type is monosodium [ethylenediamine-di(o-hydroxyphenylaceto)]iron(III) hydrate.

    摘要翻译: 铁(II),铁(III),锰(II),锰(III),钆(III)或铬(III)的配合物和下式的化合物:其中m = 2,3,4, 或5,可用于增强身体器官和组织的磁共振图像,例如肝胆系统的磁共振图像。 这种类型的说明性复合物是[乙二胺 - 二(邻羟基苯基乙酰))]铁(III)水合物。

    Process for the Prepartion of Iosimenol
    19.
    发明申请
    Process for the Prepartion of Iosimenol 有权
    碘西醇的制备方法

    公开(公告)号:US20100280270A1

    公开(公告)日:2010-11-04

    申请号:US12811833

    申请日:2009-01-14

    IPC分类号: C07C237/46

    摘要: A process for the preparation of iosimenol comprising reacting 5,5′-[(1,3-dioxo-1,3-propanediyl)diimino]bis[N-(2,3-dihydroxypropyl)-2,4,6-triiodo-1,3-benzenedicarboxamide] (C-VI) with a 3-halo-1,2-propanediol in an aqueous solvent. A process for the preparation of C-VI comprising reacting 3,3′-[(1,3-dioxo-1,3-propanediyl)diimino]bis[5-(aminocarbonyl)-2,4,6-triiodobenzoyl chloride] (C-V) with 3-amino-1,2-propanediol in the presence of an inorganic base and a suitable non-aqueous polar solvent. A process for the preparation of C-V comprising reacting 3-amino-5-(aminocarbonyl)-2,4,6-triiodobenzoyl chloride (C-IV) with malonyl dichloride in a solvent comprising a suitable ester solvent, a suitable nitrile solvent or mixtures thereof.

    摘要翻译: 包括使5,5' - [(1,3-二氧代-1,3-丙二基)二亚氨基]双[N-(2,3-二羟基丙基)-2,4,6-三碘 - 1,3-苯二甲酰胺](C-VI)与3-卤代-1,2-丙二醇在水性溶剂中反应。 一种制备C-VI的方法,包括使3,3' - [(1,3-二氧代-1,3-丙二基)二亚氨基]双[5-(氨基羰基)-2,4,6-三碘苯甲酰氯]( CV)与3-氨基-1,2-丙二醇在无机碱和合适的非水极性溶剂的存在下反应。 一种制备CV的方法,包括使3-氨基-5-(氨基羰基)-2,4,6-三碘苯甲酰氯(C-IV)与丙二酰氯在包含合适的酯溶剂,合适的腈溶剂或混合物 其中。

    Reversed phase chromatographic process
    20.
    发明授权
    Reversed phase chromatographic process 失效
    反相色谱法

    公开(公告)号:US5204005A

    公开(公告)日:1993-04-20

    申请号:US646836

    申请日:1991-01-28

    摘要: An improved process for the reversed phase chromatographic decolorization, separation, and purification of water-soluble, nonionic contrast media compounds from solutions containing nonionic compound impurities involves the steps of (a) packing a chromatographic column with a chromatographic packing material; (b) passing through the column a solution containing a water-soluble, nonionic contrast media compound and nonionic compounds as impurities at a loading ratio between approximately 10 to 1 and 1.5 to 1 wt. packing material/total wt. nonionic compounds; and (c) eluting the column to produce an eluate containing substantially pure, water-soluble, nonionic contrast media compound or MRI agent. The process can be economically practiced on a factory scale and efficiently removes non-polar impurities difficult to remove by conventional methods.

    摘要翻译: 从含有非离子化合物杂质的溶液中对水溶性非离子造影剂化合物进行反相色谱脱色,分离和纯化的改进方法包括以下步骤:(a)用色谱填充材料包装色谱柱; (b)以约10-1和1.5-1重量%之间的负载比,将含有水溶性非离子造影剂化合物和非离子化合物作为杂质的溶液通过柱子。 包装材料/总重量 非离子化合物; 和(c)洗脱柱以产生含有基本上纯的水溶性非离子造影剂化合物或MRI剂的洗脱液。 该方法可以在工厂规模上经济实践,并有效地除去常规方法难以除去的非极性杂质。