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A process for the preparation of a in the production of iodinated x-ray contrast media which can be used as intermediate product

机译:在碘化X射线造影剂生产中制备α的方法,该碘可以用作中间产物

摘要

A process for the preparation of the compound L-5-(2-acetoxypropionylamino)-2,4,6-triiodoisophthaloyl dichloride by reacting 5-amino-2,4,6-triiodoisophthaloyl dichloride with L-2-acetoxypropionyl chloride in N,N-dimethylacetamide as a solvent, characterized in that a catalytic amount of a lower alcohol is added to the reaction mixture.
机译:通过使5-氨基-2,4,6-三碘间苯二甲酰二氯与L-2-乙酰氧基丙酰氯在N中反应制备化合物L-5-(2-乙酰氧基丙酰氨基)-2,4,6-三碘间苯二甲酰二氯的方法, N-二甲基乙酰胺作为溶剂,其特征在于将催化量的低级醇加入到反应混合物中。

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