This study will include patients with one of the following: (1) Philadelphia chromosome-positive (Ph+) Chronic myeloid leukemia (CML); (2) FLT3 (gene) internal tandem duplication positive acute myeloid leukemia [FLT3 (gene) ITD-AML]. The investigational drug DCC-2036 has shown in the laboratory to affect different kinds of proteins in CML or AML cancer cells, which may help to stop these cancer cells from growing. This is a Phase 1 study. This Phase 1 study will test the highest safe dose of the investigational drug, DCC-2036, how often the drug should be given, and how well Ph+ CML and AML patients will tolerate DCC-2036. Patients' study doctor will review their past medical history, surgery(s), known allergies, and past/current medications. In addition, blood tests and bone marrow biopsies will be taken to determine if persons are eligible to participate in this study.