Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective functionalization, making it valuable in medicinal chemistry for creating targeted therapies. Commonly employed in cross-coupling reactions such as Suzuki or Buchwald-Hartwig to build complex heterocyclic systems found in bioactive molecules. Also utilized in research settings to design and optimize new drug candidates due to its favorable reactivity and ability to mimic purine scaffolds in biological systems.