Used as a key intermediate in the synthesis of kinase inhibitors, particularly in anticancer drug development. Its structure enables selective binding to ATP sites in protein kinases, making it valuable in targeting signaling pathways involved in tumor growth. Commonly utilized in medicinal chemistry for optimizing lead compounds with improved potency and selectivity. Also employed in the development of antiviral agents due to its ability to mimic purine nucleosides, interfering with viral replication processes.