A selective inhibitor of BRD9 and BRD7 bromodomains (Kds = 14.1 and 239 nM; IC50s = 75 nM and 3.4 µM; ~90% inhibition in FRAP assay at 0.1 µM and 1 µM, respectively); inhibits the growth of EOL-1 AML cells both in vitro (EC50 = 800 nM) and in a disseminated mouse model of AML (180 mg/kg/day).