Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of protease inhibitors and kinase inhibitors for cancer treatment. Its boronic acid functional group enables Suzuki-Miyaura cross-coupling reactions, making it valuable in constructing biaryl structures common in drug molecules. Also applied in the preparation of covalent inhibitors due to the ability of boronic acids to form reversible bonds with biological nucleophiles like serine residues in enzymes. Commonly employed in medicinal chemistry research for lead optimization and library synthesis in drug discovery programs.