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 creating biologically active molecules. Commonly employed in medicinal chemistry for constructing heterocyclic frameworks found in targeted therapies. Also utilized in the preparation of fluorescent probes due to its ability to undergo derivatization with reporter groups. Plays a role in the discovery of new drug candidates by enabling efficient coupling reactions in combinatorial chemistry.