Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of bioactive molecules. Its protected amine functionality and primary amide group make it suitable for selective reactions in multi-step organic syntheses, such as incorporation into peptide analogs or other drug scaffolds after deprotection. Commonly employed in the preparation of enzyme inhibitors and prodrugs due to its metabolic stability and stereochemical purity. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies involving amino acid derivatives.