Synthesis, radiosynthesis, and positron emission tomography neuroimaging using 5‐[18F]fluoro‐L‐amino suberate

System xc‐ (Sxc‐) has emerged as a new biological target for PET studies to detect oxidative and excitotoxic stress. Notably, applications have, thus far, been limited to tumour imaging although Sxc‐) may play a major role in neurodegeneration. The synthesis procedures of tosylate precursor and its translation to Sxc‐ PET tracer 5[18F]fluoro‐L‐amino suberate by manual and automated radiosyntheses are described. A brain‐PET study has been conducted to evaluate the tracer uptake into brain in healthy mice.