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  • Title: One-pot multi-tracer synthesis of novel (18)F-labeled PET imaging agents.
    Author: Haslop A, Wells L, Gee A, Plisson C, Long N.
    Journal: Mol Pharm; 2014 Nov 03; 11(11):3818-22. PubMed ID: 25158244.
    Abstract:
    (18)F labeled phosphonium salts are increasingly important molecular probes for targeting the mitochondrial membrane potential depletion during apoptosis and for detecting myocardial perfusion deficit. Here, we introduce three new tracers, [(18)F]MitoPhos_04, [(18)F]MitoPhos_05, and [(18)F]MitoPhos_07, that have the potential to act as mitochondrial imaging agents. Moreover, they have the added advantage of being synthesized in the same reaction vial from one radiolabeled synthon, demonstrating a new approach to synthesizing multiple tracers in one-pot, which is a highly useful means for increasing the throughput of radiotracer development. The radiosynthesis of the tracers was carried out on a fully automated system via a facile two-step reaction. Utilizing the radiolabeling of an ethyl azide, a copper-mediated 1,3-cycloaddition reaction and isolation via semiprep high-performance liquid chromatography (HPLC) allowed for the simultaneous synthesis of two or three tracers with a total synthesis time of less than 1 h.
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