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EP0317492A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Substituted dicarboxylic acids-bis(3,5-dicarbamoyl-2,4,6-triiodo-anilides), process for their preparation and X-ray contrast agents containing them

Assignee: Bayer Pharma AG
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Filing: 1988-11-11
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Granted: —
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Expires: 2008-11-11
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Abstract

Abstract Translated from German Die Erfindung betrifft neue substituierte Dicarbonsäure-bis(3,5-dicarbamoyl-­2,4,6-triiodanilide) der allgemeinen Formel I worin R¹ ein Wasserstoffatom, einen C₁-C₄-Alkylrest oder R², R² einen gerad- oder verzweigtkettigen C₂-C₈-Mono- oder Polyhydroxyalkylrest, R³ ein Wasserstoffatom, einen C₁-C₄-Alkylrest oder R², R⁴ ein Wasserstoffatom oder einen C₁-C₄-Alkylrest und n = 1 oder 2 bedeuten, The invention relates to new substituted dicarboxylic acid bis (3,5-dicarbamoyl-2,4,6-triiodanilide) of the general formula I. wherein R¹ is a hydrogen atom, a C₁-C₄ alkyl radical or R², R² is a straight-chain or branched-chain C₂-C₈ mono- or polyhydroxyalkyl radical, R³ is a hydrogen atom, a C₁-C₄ alkyl radical or R², R⁴ is a hydrogen atom or a C₁-C₄ alkyl radical and n = 1 or 2 mean, Die neuen nichtionischen Verbindungen der Formel I sind aufgrund ihrer guten pharmakologischen und physikochemischen Eigenschaften als schattengebende Substanzen in Röntgenkontrastmittel zur Verwendung auf allen Anwendungsgebieten für Röntgenkontrastmittel hervorragend geeignet. Because of their good pharmacological and physicochemical properties, the new nonionic compounds of the formula I are outstandingly suitable as shading substances in X-ray contrast media for use in all areas of application for X-ray contrast media.

Inventors

  • 👤 Peter Dr. Blaszkiewicz
  • 👤 Ulrich Prof. Dr. Speck

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 05:22
CPC Classifications
C; C07; C07C; C07C233/00; C07C233/64; C07C233/67; A; A61; A61K; A61K49/00; A61K49/04; C07C237/00; C07C237/28; C07C237/46

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