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 compounds for drug discovery. Commonly employed in cross-coupling reactions such as Suzuki and Buchwald-Hartwig to introduce pyrimidine scaffolds into bioactive molecules. Also utilized in agrochemical research for designing novel pesticides with improved efficacy and selectivity.