Contrast agents

C - Chemistry – Metallurgy – 07 – C

Patent

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C07C 237/46 (2006.01) A61K 49/04 (2006.01)

Patent

CA 2692646

The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two linked iodinated phenyl groups of the general formula R-N(CHO)- X-N(R3)-R wherein X denoted an optionally substituted alkylene group, R3 denotes a hydrogen atom or an acyl function and each R denotes a triiodinated phenyl residue further substituted by hydrophilic moieties. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.

La présente invention concerne une classe de composés et des compositions de diagnostic contenant de tels composés, lesdits composés étant des composés contenant de l'iode. Plus précisément les composés contenant de l'iode sont des composés chimiques contenant deux groupes phényles iodés reliés répondant à la formule générale R-N(CHO)-X-N(R3)-R, dans laquelle formule X représente un groupe alkylène éventuellement substitué, R3 représente un atome d'hydrogène ou une fonction acyle et chaque R représente un résidu de phényle triiodé encore substitué par des entités hydrophiles. L'invention concerne également : l'utilisation de telles compositions de diagnostic en tant que produits de contraste en imagerie diagnostique et en particulier en imagerie par des rayons X ; et des produits de contraste contenant de tels composés.

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