CHEMBL5730889

PI3K Delta Assay: In some embodiments, the PI3Kδ inhibitor is selective. By ¿selective¿ is meant that the compound binds to or inhibits a kinase with greater affinity or potency, respectively, compared to at least one other kinase. In some embodiments, the PI3Kδ inhibitors are selective inhibitors of PI3Kδ (e.g., over PI3Kα, PI3Kβ and PI3Kγ). In some embodiments, selectivity can be at least about 2-fold, 5-fold, 10-fold, at least about 20-fold, at least about 50-fold, at least about 100-fold, at least about 200-fold, at least about 500-fold or at least about 1000-fold. Selectivity can be measured by methods routine in the art. In some embodiments, selectivity can be tested at the Km ATP concentration of each enzyme. In some embodiments, the selectivity of compounds described herein can be determined by cellular assays associated with particular PI3K kinase activity.