Used in peptide synthesis as a protected building block, enabling selective amine coupling while preventing unwanted side reactions. Its Boc (tert-butoxycarbonyl) group provides acid-labile protection, allowing controlled deprotection under mild acidic conditions. Commonly employed in solid-phase and solution-phase synthesis of complex peptides and peptidomimetics for pharmaceutical research. Also utilized in the development of bioactive molecules, including hormone analogs and enzyme inhibitors, due to its stability and compatibility with standard coupling reagents.