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