Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly for targeting tyrosine kinases involved in cancer cell signaling. Its structure supports binding to ATP sites in enzymes, making it valuable in developing drugs for oncology. Also explored in the design of selective inhibitors for inflammatory and neurodegenerative diseases due to its ability to cross the blood-brain barrier. Commonly employed in structure-activity relationship (SAR) studies to optimize potency and selectivity in drug candidates.