TABLE 3

Prediction of intracellular KAT6A target exposure using two independent methods and comparison with biochemical potency measurements

CompoundIC50,biochem (μM)IC50,cell (μM)Fold Difference Relative to IC50,biochemSaturation MethodaBinding Methodb
Cytosolic IC50 (μM)Fold Difference Relative to IC50,biochemIntracellular IC50 (μM)Fold Difference Relative to IC50,biochem
WM-80140.0050.10200.0014.00.0061.1
WM-11190.0050.035.70.0132.70.0051.0
Compound 10.487.8160.123.80.00955
Compound 20.0858.521000.131.60.465.4
Compound 30.075121580.202.70.0531.4
Compound 40.0884.9570.596.80.394.5
Compound 50.0173.82200.179.90.0975.6
Compound 60.0610.122.10.0173.50.0106.1
Compound 70.0261.0400.0461.70.0451.7
Compound 80.0061.62600.0101.60.0032.3
Compound 90.590.921.50.029210.006105
Compound 100.170.221.30.0325.30.00445
  • a For the prediction of cytosolic IC50, the Kpuu,cyto at the unbound IC50,cell was used (eq. 16).

  • b For the prediction of intracellular IC50, the Kpuu,cell,hom in the unsaturated state was used (eq. 15).