Used as an 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. Commonly employed in the preparation of kinase inhibitors and central nervous system (CNS) agents due to the structural stability and bioavailability conferred by the tert-butyloxycarbonyl (Boc) protection and the methoxy-substituted side chain. Also utilized in research settings for generating compound libraries in medicinal chemistry.