New ternary radiopharmaceutical complexes

A - Human Necessities – 61 – K

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A61K 51/08 (2006.01)

Patent

CA 2249025

This invention relates to novel radiopharmaceuticals which are useful as imaging agents for the diagnosis of cardiovascular disorders, infectious disease and cancer, and to kits useful for their preparation. The radiopharmaceuticals of this invention are comprised of a transition metal radionuclide, a transition metal chelator, a biologically active group connected to said chelator, a first ancillary ligand, a second ancillary ligand capable of stabilizing the radiopharmaceutical, optionally having a linking group between said chelator and said biologically active group. Preferred radiopharmaceuticals of this invention have the formula: [(Q)d'Ln- Ch']x-Mt(AL1)y(AL2)z, wherein the shown variables are as defined herein.

La présente invention concerne des produits radio-pharmaceutiques convenant particulièrement comme agents d'imagerie pour le diagnostic de troubles cardio-vasculaires, de maladies infectieuses et du cancer. L'invention concerne également des assortiments convenant à la préparation de tels produits. Les produits radio-pharmaceutiques de l'invention comprennent un radio-nucléide de métal de transition, un chélateur de métal de transition, un groupe biologiquement actif en connexion avec ce chélateur, un premier ligand accessoire, un second ligand accessoire capable de stabiliser les produits radiopharmaceutiques, avec, de façon facultative, un groupe de liaison entre ce chélateur et le groupe biologiquement actif. Les produits radio-pharmaceutiques de l'invention sont représentés par la formule [(Q)¿d'?L¿n?-C¿h'?]¿x?-M¿t?(A¿L1?)¿y?(A¿L2?)¿z?, formule dont les variables sont conformes à la description qu'en donne le corpus de la demande.

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