Used in pharmaceutical research as a key intermediate in the synthesis of tyrosine kinase inhibitors, particularly in the development of anticancer agents. It plays a role in targeting epidermal growth factor receptor (EGFR) pathways, which are implicated in various cancers, including non-small cell lung cancer. Its structure allows for selective binding and inhibition of abnormal kinase activity, making it valuable in designing targeted therapies. Also employed in structure-activity relationship (SAR) studies to optimize drug potency and reduce resistance in oncology drug discovery.