Patent ID: 7125875

Claim:
A method for the treatment of a cancer comprising administering to a subject in need thereof an effective amount of the compound of formula III or a salt thereof: wherein: each R 1 , R 3 and R 4 is, independently, a heterocyclic group or an aryl group, optionally substituted with one or more substituents; and R 2 is hydrogen or alkyl; wherein the cancer is chronic myelogenous leukemia (CML), gastrointestinal stromal tumor (GIST), small cell lung cancer (SCLC), non-small cell lung cancer (NSCLC), ovarian cancer, melanoma, mastocytosis, germ cell tumors, acute myelogenous leukemia (AML), pediatric sarcomas, breast cancer, colorectal cancer, pancreatic cancer, or prostate cancer.