Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of kinase inhibitors and antiviral agents. Its structure allows for selective functionalization, making it valuable in constructing complex heterocyclic systems found in active drug molecules. Commonly employed in medicinal chemistry for derivatization reactions, especially in the preparation of pyrimidine-based compounds with biological activity. Also utilized in agrochemical research for designing novel pesticides and herbicides due to its reactivity and ability to form stable derivatives.