BAZ1A-IN-1 is a potent inhibitor of BAZ1A (bromodomain-containing protein) . BAZ1A-IN-1 shows a KD value of 0.52 μM against BAZ1A bromodomain. BAZ1A-IN-1 shows good anti-viability activity against cancer cell lines expressing a high level of BAZ1A, but weak or no activity against cancer cells with a low expression level of BAZ1A[1].