New, well tolerated metal chelates, for use as radiodiagnostic, radiotherapeutic or NMR and X-ray diagnostic agents, contain chelator and perfluorinated polyethylene glycol residues

摘要

New metal chelates (I) (optionally in salt form) contain (a) perfluorinated polyethylene glycol (PEG) residue(s), (b) chelator residue(s) and (c) at least one equivalent of metal(s) of atomic number 21-29, 31-33, 37-39, 42-44, 49 or 57-83. An independent claim is included for new metal-free chelating agent intermediates (II), containing the components (a) and (b). ACTIVITY : Cytostatic. MECHANISM OF ACTION : Radiotherapy.