Used as a key intermediate in the synthesis of biologically active compounds, particularly pharmaceuticals. Its chiral piperazine backbone makes it valuable in the development of drugs targeting central nervous system disorders, including antidepressants and antipsychotics. The tert-butyloxycarbonyl (Boc) protecting group allows for selective functionalization, enabling controlled stepwise synthesis in complex molecule assembly. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its stereochemical purity and ability to enhance solubility and bioavailability in drug candidates.