The present invention provides a tissue-targeting complex comprising a tissue targeting moiety, an octadentate hydroxypyridinone-containing ligand and the ion of an alpha-emitting thorium radionuclide. The invention additionally provides therapeutic methods employing such complexes, methods of their production and use, and kits and pharmaceutical compositions comprising such complexes.
The invention provides compounds such as chelating agents useful in chelating metal ions, particularly radionuclides, to provide metal ion complexes. The invention also provides methods of using the compounds and complexes of the invention, such as in therapeutic and diagnostic applications.
Di-macrocyclic terephthalamide ligands as chelators for the PET radionuclide zirconium-89
作者:Darpan N. Pandya、Sylvie Pailloux、David Tatum、Darren Magda、Thaddeus J. Wadas
DOI:10.1039/c4cc09256b
日期:——
Octadentate terephthalamide ligands can be easily radiolabeled with 89Zr and are highly stable in vitro. They represent a novel class of bifunctional chelators for 89Zr.
The present invention provides a novel class of macrocyclic compounds as well as complexes formed between a metal (e.g., lanthanide) ion and the compounds of the invention. Preferred complexes exhibit high stability as well as high quantum yields of lanthanide ion luminescence in aqueous media without the need for secondary activating agents. Preferred compounds incorporate hydroxy-isophthalamide moieties within their macrocyclic structure and are characterized by surprisingly low, non-specific binding to a variety of polypeptides such as antibodies and proteins as well as high kinetic stability. These characteristics distinguish them from known, open-structured ligands.