Used in pharmaceutical research as a key intermediate in the synthesis of tyrosine kinase inhibitors, particularly targeting epidermal growth factor receptor (EGFR). It plays a role in developing anticancer agents, especially for non-small cell lung cancer and other solid tumors. Its structure supports high binding affinity to mutant forms of EGFR, making it valuable in designing targeted therapies. Also investigated for use in central nervous system drugs due to its ability to cross the blood-brain barrier.