Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of antiviral and anticancer agents. Its structure supports the formation of biologically active molecules by serving as a building block in heterocyclic chemistry. Commonly employed in medicinal chemistry for modifying drug candidates to improve solubility, bioavailability, and target binding affinity. Also utilized in the preparation of kinase inhibitors and other enzyme modulators due to its ability to mimic purine-like scaffolds in biological systems.