Metal complexes for use in medical and therapeutic applications

C - Chemistry – Metallurgy – 07 – F

Patent

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Details

C07F 1/08 (2006.01) A61K 31/30 (2006.01) A61K 49/00 (2006.01) A61K 51/04 (2006.01) C07F 5/00 (2006.01) C07F 7/00 (2006.01) C07F 9/68 (2006.01) C07F 11/00 (2006.01) C07F 13/00 (2006.01) C07F 15/00 (2006.01) C07F 15/02 (2006.01) C07F 15/04 (2006.01)

Patent

CA 2420645

The first aspect of the present invention relates to transition metal complexes having the formula (I) or (II) wherein M is a radioactive metal having a valence of +2, +3, +4, or +5; m+~ designates the charge of the metal complex, each R is independently C~1-C~8 linear or branched alkyl, a fifth ligand, and mixtures thereof; B is a bridging unit which comprises at least 2 carbon atoms; L is a pharmaceutically acceptable ligand; X is a pharmaceutically compatible anion in sufficient amount to provide electronic neutrality. The complexes of the present invention are suitable for use in diagnostic, therapeutic or radiotherapeutic or chemotherapeutic compositions for visualization, therapy, chemotherapy or radiotherapy of tissues or organs.

Le premier mode de réalisation de l'invention concerne des complexes de métaux de transition de formule (I) ou (II), dans laquelle M désigne un métal radioactif de valence +2, +3, +4, ou +5; m<+> désigne la charge du complexe de métaux, chaque R représente indépendamment un alkyle linéaire ou ramifié en C1-C8, un cinquième ligand, et des mélanges de ceci; B désigne une unité de pontage comprenant au moins 2 atomes de carbone; L désigne un ligand acceptable sur le plan pharmaceutique; X représente un anion compatible sur le plan pharmaceutique en une quantité suffisante pour assurer une neutralité électronique. Les complexes selon l'invention sont conçus pour être utilisés dans des compositions diagnostiques, thérapeutiques ou radiothérapeutiques ou chimiothérapeutiques, aux fins de visualisation, thérapie, chimiothérapie ou radiothérapie de tissus ou d'organes.

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