Used as an intermediate in the synthesis of biologically active compounds, particularly in the development of pharmaceuticals. Its chiral structure makes it valuable in asymmetric synthesis, where stereochemistry is critical for drug efficacy. Commonly employed in the preparation of protease inhibitors and other enzyme-targeted therapeutics. Also utilized in the construction of complex peptides and peptidomimetics due to its ability to stabilize specific conformations. Frequently found in research settings for optimizing drug candidates with improved metabolic stability and binding affinity.