Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) where piperazine derivatives are key structural components. The Boc-protected amine and the nitrile group allow for selective reactions, enabling stepwise construction of complex molecules. Commonly employed in medicinal chemistry for drug discovery, especially in the preparation of kinase inhibitors, CNS-active agents, and other bioactive molecules. Its functional groups facilitate coupling reactions and further derivatization, making it valuable in combinatorial chemistry and library synthesis.