AAZTA: An Ideal Chelating Agent for the Development of <sup>44</sup>Sc PET Imaging Agents

Gábor Nagy, Dezső Szikra, György Trencsényi, Anikó Fekete, Ildikó Garai, Arianna Maria Giani, Roberto Negri, Norberto Masciocchi, Alessandro Maiocchi, Fulvio Uggeri,

Angewandte Chemie · 2017 · 14 citations · 26 references

Concepts

Abstract

Abstract Unprecedented fast and efficient complexation of Sc III was demonstrated with the chelating agent AAZTA (AAZTA=1,4‐bis(carboxymethyl)‐6‐[bis(carboxymethyl)]amino‐6‐methylperhydro‐1,4‐diazepine) under mild experimental conditions. The robustness of the 44 Sc(AAZTA) − chelate and conjugated biomolecules thereof is further shown by in vivo PET imaging in healthy and tumor mice models. The new results pave the way towards development of efficient Sc‐based radiopharmaceuticals using the AAZTA chelator.

References

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