Compound Liver Microsomal StabilityaT1/2 (min)  Cellular Permeability in Caco-2 Cellsb Plasma ProteinBindingc (% Bound at 2 µM)
Dog Human Papp A→B (cm/sec × 10-6) Papp A→B (cm/sec × 10-6) EffluxRatio Dog Human
RAL 353.9 257.1 2.8 9.5 3.4
GS-9160 43.6 26.5 1.6 6.0 3.8 93.5 89.6
GS-9224 67.1 30.2 3.8 8.8 2.3 99.5 97.7
aMean of 13 independent experiments.
b Mean of 2 independent experiments.
cMean of 3 determinations using equilibrium dialysis.
Table 7: In Vitro ADME Profiling of GS-9224 Relative to GS-9160 and RAL.
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