Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceutical research targeting kinase inhibitors and anticancer agents. Its structure allows for selective functionalization, making it valuable in developing drug candidates with high potency and specificity. Commonly employed in cross-coupling reactions, such as Suzuki or Heck reactions, to build complex heterocyclic systems found in therapeutic molecules. Also utilized in the design of probes for biochemical assays due to its ability to mimic purine scaffolds in nucleotide-binding proteins.