Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of peptidomimetics and beta-amino acid derivatives. Its protected amine and carboxylic acid functionalities make it suitable for solid-phase and solution-phase peptide coupling reactions. Commonly employed in the preparation of enzyme inhibitors and bioactive molecules where stereochemistry plays a critical role in activity. The tert-butoxycarbonyl (Boc) group allows for easy deprotection under mild acidic conditions, enabling sequential synthesis in complex molecule assembly.