Discovery and SAR of pyrrolo[2,1-f][1,2,4]triazin-4-amines as potent and selective PI3Kδ inhibitors.

2016
Aberrant Class I PI3K signaling is a key factor contributing to many immunological disorders and cancers. We have identified 4-amino pyrrolotriazine as a novel chemotypethat selectively inhibits PI3Kδ signaling despite not binding to the specificity pocket of PI3Kδ isoform. Structure activity relationship(SAR) led to the identification of compound 30 that demonstrated efficacy in mouse Keyhole Limpet Hemocyanin(KLH) and collagen induced arthritis(CIA) models.
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