Table 2. Structure-Activity Relationships of the Benzimidazolone-N3 Position (Labeled as R3 Group).
Data represent the geometric mean of at least three replicates. See Supporting Information Table S2 for full statistics.
Kinetic solubility measured by NMR in HEPES buffer (containing 5% DMSO) at pH 8. Where this was <30 μM, solubility by HPLC in PBS buffer and 1% DMSO at pH 7.4 was also measured and is shown in parentheses.