Used as a key intermediate in the synthesis of antiviral and anticancer agents, particularly in the development of kinase inhibitors. Its structure allows for selective modification, making it valuable in medicinal chemistry for designing drugs that target specific signaling pathways in cancer cells. Commonly employed in research settings to optimize lead compounds due to its favorable reactivity and ability to enhance binding affinity with target proteins. Also utilized in the preparation of pyrimidine-based derivatives with potential activity against resistant viral strains.