An analog of 3-deazaadenosine, an inhibitor of SAH hydrolase; depletes EZH2 levels and inhibits trimethylation of lysine 27 on histone H3 in primary human AML cells in a dose-dependent manner (0.2-1 μM); acts synergistically with the pan-HDAC inhibitor panobinostat in inducing apoptosis of AML cells implanted in mice.