AKT1 and neoplasm: In this study, we present the indeno[1,2‐b]indole derivative 5‐isopropyl‐4‐methoxy‐7‐methyl‐5,6,7,8‐tetrahydroindeno[1,2‐b]indole‐9,10‐dione (5a‐2) that decreased the intracellular CK2 activity in A431, A549, and LNCaP tumor cell lines analogous to CX‐4945 (> 75% inhibition at 20 μm) and similarly blocked CK2‐specific Akt phosphorylation in LNCaP cells.