Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine scaffolds. Its protected amine group allows for selective reactions in multi-step organic syntheses, making it valuable in drug discovery for central nervous system agents, antivirals, and anticancer drugs. The ester functionality enables further derivatization, such as hydrolysis or coupling reactions, to build complex molecules. Commonly employed in medicinal chemistry research due to its stability and reactivity profile.