Method of treating persons having carcinoma, sarcoma or hematopoietic cancer by administering (i) a compound of the formula (I)and (ii) an epidermal growth factor receptor (EGFR) inhibitor, a vascular endothelial growth factor receptor (VEGFR) inhibitor and pharmaceutical compositions for use in said method. A method for treating gastric cancer, colon cancer, lung cancer, breast cancer, pancreas cancer, kidney cancer, prostate cancer, medulloblastoma, rhabdomyosarcoma, Ewing sarcoma, liposarcoma, multiple myeloma and leukemia by administering a compound of the formula (I).
