Table 3. B-Ring SARs on Oxygen Affinity with Purified HbS and Whole Blood and on the Change in Delay Time to the Onset of Polymerization.

Data expressed as Δp50%: the % change from baseline of pO2 at which HbS (at 25 μM) is 50% saturated with O2 in the presence of test compound at 30 μM.
Data expressed as Δp50%: the % change from baseline of pO2 at which whole blood (at 20% hematocrit, 1 mM) is 50% saturated with O2 in the presence of test compound at 1 mM.
Data expressed as ΔT%: the % change from baseline of delay time of HbS at 50 μM in the presence of test compound at 75 μM.
Not determined; please see Supporting Information for standard deviation and number of tests.