EPZ011989

EPZ011989 is a potent EZH2 inhibitor with Ki values that are less than 3 nM for wild type and Tyr646 mutated EZH2. It displays 15-fold selectivity for EZH2 over EZH1 and is without effect against an array of other lysine methyltransferases. EPZ011989 demonstrates significant tumor growth inhibition in a mouse xenograft model of human B cell lymphoma.