Used in pharmaceutical research as a key intermediate in the synthesis of kinase inhibitors, particularly those targeting cyclin-dependent kinases (CDKs). Its structure enables selective binding to ATP sites in enzymes involved in cell cycle regulation, making it valuable in developing anticancer agents. Also explored for antiviral applications due to its ability to modulate signaling pathways. Employed in structure-activity relationship (SAR) studies to optimize potency and selectivity in drug candidates.