A cell-permeable and reversible tricyclic nucleoside that selectively inhibits the cellular phosphorylation/activation of Akt1/2/3 by targeting an Akt effector molecule other than PI 3-K or PDK. Exhibits little effect towards cellular signaling pathways mediated by PKC, PKA, SGK, Stat3, p38, ERK1/2, or JNK. Shown to preferentially induce apoptosis and growth arrest in cancer cells with aberrant Akt activity both in vitro (≥60% in cell proliferation at 20 µM) and in vivo (≥80% inhibition in tumor growth in mice at 1 mg/kg/day, i.p.). Also available in InSolution format (Cat. No. 124038.