Used primarily as an intermediate in the synthesis of pharmaceutical compounds, especially in the development of kinase inhibitors for cancer treatment. Its boronic ester functionality enables participation in Suzuki-Miyaura cross-coupling reactions, making it valuable in constructing biaryl systems found in bioactive molecules. It is also employed in medicinal chemistry for modifying peptide-like structures to enhance binding affinity and metabolic stability. Additionally, it serves as a building block in the preparation of proteolysis-targeting chimeras (PROTACs) due to its ability to link target-binding ligands with E3 ligase recruiters.