Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and antiviral agents. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in cross-coupling reactions such as Suzuki-Miyaura and Buchwald-Hartwig aminations to build biaryl and amino-substituted pyrimidine derivatives. Also utilized in agrochemical research for designing novel pesticides with improved efficacy and selectivity.