Used as a key intermediate in pharmaceutical synthesis, particularly in the development of kinase inhibitors and other bioactive molecules. Its boronic acid group enables Suzuki-Miyaura cross-coupling reactions, allowing efficient formation of carbon-carbon bonds in complex organic frameworks. The piperazine ring with a Boc-protecting group provides structural versatility for further functionalization, making it valuable in medicinal chemistry for constructing drug candidates with improved solubility and target affinity. Commonly employed in the preparation of protease inhibitors and anticancer agents.