Used as a key intermediate in the synthesis of tyrosine kinase inhibitors, particularly in pharmaceuticals targeting cancer pathways such as EGFR (epidermal growth factor receptor) inhibition. It plays a role in the development of small-molecule drugs designed to block abnormal signaling in tumor cells. Its structure supports binding affinity and selectivity in kinase inhibitor scaffolds, making it valuable in oncology drug research. Commonly employed in medicinal chemistry for optimizing potency and pharmacokinetic properties during lead compound development.