Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine ring systems. Its protected piperazine structure allows selective modification during multi-step organic syntheses, making it valuable in drug discovery for central nervous system agents, antihistamines, and antipsychotics. The hydroxyl and tert-butyl carbamate groups provide sites for further chemical transformations, enabling the construction of complex molecules with improved bioavailability and target specificity.