Synthesis of JG-98 analogs was carried out as reported.17,44 (link) For each purified compound, 1H-NMR spectra were obtained using a Bruker 400 or 500 Ultrashield™ spectrometer and analyzed using Bruker TOPSPIN. Active analogs were soluble in aqueous solutions at 50 μM, as determined by DLS and turbidity measurements.