Used as a key intermediate in the synthesis of kinase inhibitors, particularly in the development of anticancer agents. Its structure allows selective modification to target specific protein kinases involved in tumor growth and signal transduction pathways. Commonly employed in pharmaceutical research for optimizing potency and selectivity in drug candidates, especially for hematological cancers and solid tumors. Also utilized in structure-activity relationship (SAR) studies to improve metabolic stability and bioavailability of lead compounds.