Used in pharmaceutical research as a key intermediate in the synthesis of selective kinase inhibitors, particularly in the development of anticancer agents. Its structure enables strong binding to specific enzyme targets involved in tumor growth and signal transduction pathways. Commonly employed in the preparation of drug candidates targeting tyrosine kinases and other ATP-binding proteins. Also utilized in structure-activity relationship (SAR) studies to optimize potency, selectivity, and pharmacokinetic properties of new therapeutic compounds.