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 antipsychotics and antidepressants. The tert-butoxycarbonyl (Boc) group serves as a protecting group, allowing selective reaction at other sites during multi-step syntheses. The cyanomethyl moiety can be further modified to introduce amides, amines, or heterocyclic structures, expanding its utility in medicinal chemistry for building complex drug molecules. Commonly employed in research settings for structure-activity relationship (SAR) studies.