Figure 1.
Concentration-response study for all inhibitors compared to 1a and 2 at 50 μM, 20 μM, 1 μM, 500 nM, 100 nM, 20 nM and 10 nM. Percent residual activity of 38a was commensurate with 2 at most concentrations. Slope activity was determined between 0–40 min of assay activity time and determined as a percentage relative to DMSO.