Used as a protected amino acid derivative in peptide synthesis, enabling selective coupling and preventing unwanted side reactions. Its Boc-protected amine group allows for controlled deprotection under mild acidic conditions, making it valuable in stepwise solid-phase and solution-phase peptide assembly. Also employed in the preparation of biologically active compounds, including pharmaceuticals and enzyme inhibitors, where precise functional group manipulation is required. Commonly used in research settings for synthesizing labeled peptides and peptidomimetics.