Process for production of ioversol
    4.
    发明授权
    Process for production of ioversol 失效
    ioversol生产工艺

    公开(公告)号:US4997983A

    公开(公告)日:1991-03-05

    申请号:US472691

    申请日:1990-01-31

    CPC分类号: C07C237/46 C07C231/24

    摘要: A process for the production of N,N'-bis(2,3-dihydroxypropyl)-5-N-(2-hydroxyethyl)glycolamido-2,4,6-triiodoisopht alamide wherein a mixture of 1,1,2-trichloroethane and 5-[(N-(2-acetoxyethyl)acetoxyacetamido]N,N'-bis(2,3-diacetoxypropyl)-2,4,6-triiodoisophthalamide (hexaacetate) is distilled to remove 1,1,2-trichloroethane, at least a part of which is distilled as an azeotrope with water, so that a solvent exchange is effected to produce a mixture of hexaacetate in water. Hydrolysis of hexaacetate produces the desired product.

    摘要翻译: 一种制备N,N'-双(2,3-二羟丙基)-5-N-(2-羟乙基)乙二醇基-2,4,6-三碘代碘代酰胺的方法,其中将1,1,2-三 三氯乙烷和5 - [(N-(2-乙酰氧基乙基)乙酰氧基乙酰胺基] N,N'-双(2,3-二乙酰氧基丙基)-2,4,6-三碘间苯二酰胺(六乙酸酯)蒸馏除去1,1,2-三氯乙烷 ,其至少一部分与水共沸蒸馏,从而进行溶剂交换以产生六乙酸酯在水中的混合物。六乙酸酯的水解产生所需产物。