Used as a key intermediate in the synthesis of tyrosine kinase inhibitors, particularly in targeted cancer therapies. Its structure enables binding to specific enzyme sites involved in tumor growth signaling pathways. Commonly applied in pharmaceutical research for developing drugs that inhibit abnormal cell proliferation, especially in studies related to non-small cell lung cancer and other solid tumors. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies to optimize drug potency and selectivity.