BI-7273 is a potent BRD9 bromodomain inhibitor (Kd = 15.4 nM; IC50 = 19 nM) that less effectively inhibits the functionally and structurally related BRD7 bromodomain (IC50 = 117 nM). It is without effect against the bromodomains of BRD2 and BRD4, as well as a panel of kinases. BI-7273 inhibits the growth of EOL-1 acute myeloid leukemia cells in vitro (EC50 = 1.4 μM).
