Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) that require piperazine and aniline functional groups. Its structure allows for selective modifications, making it valuable in medicinal chemistry for creating drug candidates targeting central nervous system disorders, inflammatory conditions, and certain oncology pathways. The tert-butyloxycarbonyl (Boc) protecting group enables controlled deprotection during multi-step syntheses, ensuring compatibility with various reaction conditions. Commonly employed in research laboratories and early-stage drug discovery programs to build complex molecules with improved bioavailability and target specificity.