Used as an intermediate in the synthesis of epidermal growth factor receptor (EGFR) inhibitors, particularly in targeted cancer therapies. Its structure supports binding to tyrosine kinase domains, making it valuable in developing anticancer agents. Commonly applied in pharmaceutical research for designing drugs that inhibit tumor growth, especially in non-small cell lung cancer. Also utilized in structure-activity relationship (SAR) studies to optimize potency and selectivity of kinase inhibitors.