First-in-Human PET Imaging of [¹⁸F]SDM-4MP3: A Cautionary Tale

Figure 7

¹³C and ¹H NMR spectra of precursors obtained from ABX and Yale (aromatic region shown with discrepancies outlined in red). Annotated protons for the pyridine ring for both precursors shown on the right. Precursor lot from PharmaSynth was also tested but was not appreciably different from the Yale lot (data not shown).