DNA-PK/HDAC6-IN-1 is a selcetive and orally active dual DNA-PK and HDAC6 inhibitor with IC50 values of 84.2 and 64.8 nM. DNA-PK/HDAC6-IN-1 suppresses cancer cells proliferation, induces cancer cell cycle G2/M arrest, apoptosis, and decreases the mitochondrial membrane potential. DNA-PK/HDAC6-IN-1 induces DNA damage and elevates gamma-H2AX levels. DNA-PK/HDAC6-IN-1 exhibits antitumor efficacy in AML animal mouse model. DNA-PK/HDAC6-IN-1 can be used for the research of acute myeloid leukemia[1].