Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other biologically active molecules. Its protected amine and ester functionalities allow for selective reactions in peptide coupling and multi-step organic synthesis. Commonly employed in the preparation of enzyme inhibitors where stereochemistry plays a critical role in biological activity. The Boc-protected amine ensures stability during reactions and can be deprotected under mild acidic conditions, making it suitable for solid-phase and solution-phase peptide synthesis. Frequently utilized in research settings for drug discovery, especially in oncology and antiviral therapies.