The development of bifunctional chelators (BFCs) which can stably chelate zirconium-89 (89Zr) while being conjugated to targeting molecules is an area of active research. Herein we report the first octadentate terephthalamide ligands, which are easily radiolabeled with 89Zr and are highly stable in vitro. They represent a novel class of chelators, which are worthy of further development as BFCs for 89Zr.
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© The Royal Society of Chemistry 2015.