Generated: April 29, 2017
|Title:||Non-ionic contrast media from ionic contrast media|
|Abstract:||Novel non-ionic contrast media are efficiently prepared from generally available ionic contrast media. Particularly, polyhydroxyhalohydrocarbons are employed with a triiodo-substituted acylamido benzoic acids in aqueous weakly basic media to selectively substitute the amido nitrogen, followed by activation of the carboxyl group for amide formation.|
|Inventor(s):||Sovak; Milos (Rancho Santa Fe, CA), Ranganathan; Ramachandran (San Diego, CA)|
|Assignee:||Cook Imaging Corporation (Bloomington, IN)|
|Filing Date:||Sep 14, 1990|
|Claims:||1. In a method of X-raying a host employing a contrast medium, the improvement which comprises employing as a contrast medium 5-(N-2,3-dihydroxypropylacetamido)-2,4,6-triiodo-N-(2,3-dihydroxypropyl)-N '-(2-hydroxyethyl)-isophthalamide.|
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