Ternary radiopharmaceutical complexes

A - Human Necessities – 61 – K

Patent

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Details

A61K 51/08 (2006.01) A61K 51/04 (2006.01) A61N 5/10 (2006.01) C07B 59/00 (2006.01) C07K 7/56 (2006.01)

Patent

CA 2216423

This invention provides novel radiopharmaceuticals which are useful as imaging agents for the diagnosis of cardiovascular disorders, infectious diseases and cancer. The radiopharmaceuticals are comprised of phosphine or arsine ligated technetium-99m labeled hydrazino or diazino modified biologically active molecules that selectively localize at sites of disease and thus allow an image to be obtained of the loci using gamma scintigraphy. This invention also provides methods for using the radiopharmaceuticals and kits comprising radiopharmaceutical precursors. The radiopharmaceuticals of this invention have the structure: [(Q)d'L n-C h']x-M t(A L1)y(A L2)z; wherein the variables are as defined herein.

Substances radiopharmaceutiques utiles comme agents d'imagerie pour le diagnostic des troubles cardio-vasculaires, des maladies infectieuses et du cancer. Ces produits radiopharmaceutiques sont constitués de molécules biologiquement actives, modifiées par hydrazino ou diazino biologiquement actives, marquées au technetium-99m, ligaturées par phosphine ou arsine, qui localisent sélectivement les sites de la maladie et permettent d'obtenir une image des loci au moyen d'une scintigraphie gamma. L'invention porte également sur des procédés d'utilisation des produits radiopharmaceutiques et sur des nécessaires comportant des précurseurs radiopharmaceutiques. Les produits radiopharmaceutiques décrits selon l'invention ont la structure suivante: [(Q)d'Ln-Ch'] x-Mt(AL1)y(AL2)z, dont les variables sont définis dans le descriptif.

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