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 carboxylic acid functionalities make it suitable for peptide coupling reactions, allowing incorporation into complex peptide structures. The (R)-stereochemistry is valuable for achieving desired biological activity in target compounds, especially in drugs where stereochemistry influences potency and selectivity. Commonly employed in research and development of enzyme inhibitors and medicinal agents requiring high enantiomeric purity.