Used as an intermediate in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) targeting central nervous system disorders such as antidepressants, anxiolytics, or psychotropic agents. Its piperazine core with a benzyl substituent provides compatibility with specific brain receptors, enabling the creation of compounds with targeted affinities. The tert-butoxycarbonyl (Boc) protecting group allows for selective modification in multi-step syntheses by shielding sensitive nitrogen functionality, which can be easily removed under mild acidic conditions for efficient reaction control. Commonly employed in the preparation of receptor ligands and in medicinal chemistry research to generate novel active compounds and compound libraries.