Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of pharmaceuticals targeting central nervous system disorders. Its piperazine backbone and functionalized side chains make it valuable in constructing drug candidates with improved binding affinity and selectivity. Commonly employed in the preparation of protease inhibitors and receptor modulators, especially in research focused on antiviral and anticancer agents. The presence of the cyano group allows for further chemical transformations, enabling the introduction of diverse functional groups during multi-step syntheses. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies due to its chiral center and ability to influence pharmacokinetic properties.