USE OF A KINASE INHIBITOR FOR THE TREATMENT OF PARTICULAR RESISTANT TUMORS

摘要

The invention provides low molecular weight compounds, namely 1H-thieno[2,3- c]pyrazoles, showing a high affinity for the ATP pocket of ABL tyrosine kinase. These compounds are thus ATP-competitive tyrosine kinase inhibitors displaying a significant inhibitory potency also, and in particular, towards BCR-ABL inhibitor- resistant T315I ABL mutants. The compounds of the invention find a useful application in the treatment of BCR-ABL inhibitor-resistant ABL-mediated diseases, such as Imatinib-resistant chronic myelogenous leukemia. Moreover, the invention provides a screening method for the identification of compounds capable of binding the ATP pocket of a kinase protein, in particular of the T315I mutant ABL kinase.