Abstract

TRPC5 is a member of the mammalian transient receptor potential (TRP) channel superfamily and it has been implicated in various physiological and pathological mechanisms of neurological and psychiatric diseases. Fluorine-18 is one of the most widely used radionuclides for PET imaging due to its favorable chemical characteristics and nuclear-physical properties. Herein, we describe two complementary radiosynthetic approaches and preliminary in vivo evaluation for [18F]TZ78141 as a novel and promising fluorine-18 labeled radiotracer for imaging TRPC5. The latter strategy employed a ruthenium-mediated radiofluorination method, facilitating the rapid synthesis of the desired radiotracer with substantial advantages in simplicity and efficiency.

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