Synthesis of Clinical-Grade [<sup>18</sup>F]-Fluoroestradiol as a Surrogate PET Biomarker for the Evaluation of Estrogen Receptor-Targeting Therapeutic Drug

<table>Schematic flow chart of the process for radiosynthesis of [<sup>18</sup>F]FES.</table>

International Journal of Molecular Imaging

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Figure 2

Figure 2: Synthesis of Clinical-Grade [<sup>18</sup>F]-Fluoroestradiol as a Surrogate PET Biomarker for the Evaluation of Estrogen Receptor-Targeting Therapeutic Drug 

Figure 2 | Synthesis of Clinical-Grade [18F]-Fluoroestradiol as a Surrogate PET Biomarker for the Evaluation of Estrogen Receptor-Targeting Therapeutic Drug 