Inhibitor of PI3 kinase
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Inhibitor of PI3 kinase

8-(2-Methylphenoxy)-2-(4-morpholinyl)-4(1H)-quinolinone (TGX115)

OTAVAchemicals Catalogue Number: 7070707058
CAS Registry Number: 351071-62-0
Purity: 95%+ (HPLC)

Ref.: Knight et al. Isoform-specific phosphoinositide 3-kinase inhibitors from an arylmorpholine scaffold. Bioorganic & Medicinal Chemistry (2004), 12, 4749-4759

Abstract: Phosphoinositide 3-kinases (PI3-Ks) are an ubiquitous class of signaling enzymes that regulate diverse cellular processes including growth, differentiation, and motility. Physiological roles of PI3-Ks have traditionally been assigned using two pharmacological inhibitors, LY294002 and wortmannin. Although these compounds are broadly specific for the PI3-K family, they show little selectivity among family members, and the development of isoform-specific inhibitors of these enzymes has been long anticipated. Herein, we prepare compounds from two classes of arylmorpholine PI3-K inhibitors and characterize their specificity against a comprehensive panel of targets within the PI3-K family. We identify multiplex inhibitors that potently inhibit distinct subsets of PI3-K isoforms, including the first selective inhibitor of p110β/p110δ (IC50 p110β = 0.13 μM, p110δ = 0.63 μM). We also identify trends that suggest certain PI3-K isoforms may be more sensitive to potent inhibition by arylmorpholines, thereby guiding future drug design based on this pharmacophore.