A method and medicament for treating mixed lineage leukemia; translocated mixed lineage leukemia; translocated mixed lineage leukemia based acute myelogenous leukemia; translocated mixed lineage leukemia based acute lymphoid leukemia; a non-MLL based chronic myeloproliferative disorder, or non-MLL based acute lymphoid leukemia is provided.本發明提供一種用於治療如下疾病之方法及醫藥物:混合譜系白血病、轉位混合譜系白血病、以轉位混合譜系白血病為根基之急性骨髓性白血病、以轉位混合譜系白血病為根基之急性淋巴性白血病、非以MLL為根基之慢性骨髓增生性病症、或非以MLL為根基之急性淋巴性白血病。