Used primarily as an intermediate in the synthesis of pharmaceutical compounds, especially in the development of active pharmaceutical ingredients (APIs) targeting central nervous system disorders. Its protected piperazine core allows for selective modification, making it valuable in constructing complex molecules with specific receptor binding properties. Commonly utilized in medicinal chemistry for creating analogs in structure-activity relationship (SAR) studies. Also employed in the preparation of receptor agonists and antagonists, particularly in serotonin and dopamine receptor research. Suitable for coupling reactions in combinatorial chemistry and drug discovery pipelines.