Nucleophilic ring-opening of activated aziridines: A one-step method for labeling biomolecules with fluorine-18
摘要:
The direct labeling of biomolecules with fluorine-18 is highly desirable. An option is the ring-opening of an activated aziridine moiety in a biomolecule using (18)F-fluoride. Therefore, a series of aziridine-based model compounds and three aziridine-based biomolecules four aziridine-based model compounds were synthesized and evaluated as potential precursors for a direct one-step radiolabeling with fluorine-18. High to moderate yields of (18)F-incorporation were achieved under mild labeling conditions. The influence of different activating groups, reaction temperature, solvent and base was investigated. The applicability of this method for the direct (18)F-radiolabeling of biomolecules for positron emission tomography (PET) studies is illustrated with examples. (C) 2009 Elsevier B.V. All rights reserved.
The present invention relates to novel compounds suitable for or already radiolabelled with
18
F, methods of making such compounds and use of such compounds for diagnostic imaging.