Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other biologically active molecules. Its nitrile group allows for further functionalization, while the Boc-protected amine ensures selective reactivity in multi-step organic syntheses. Commonly employed in asymmetric synthesis to introduce stereocenters in drug candidates. Widely utilized in the preparation of amino acid derivatives and peptidomimetics for medicinal chemistry research.