Used in medicinal chemistry as a key intermediate for synthesizing kinase inhibitors and other biologically active compounds. Its boronic acid functionality enables Suzuki-Miyaura cross-coupling reactions, making it valuable in the development of pharmaceuticals, particularly in oncology research. The piperazine ring enhances solubility and binding affinity, which supports its use in drug design for improving pharmacokinetic properties. Commonly employed in the synthesis of targeted therapies, including proteasome and tyrosine kinase inhibitors.