Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of enzyme inhibitors and bioactive molecules. Its stereochemistry makes it valuable in asymmetric synthesis, where it helps control the formation of specific enantiomers in drug candidates. Commonly employed in medicinal chemistry for optimizing metabolic stability and binding affinity in peptidomimetic compounds. Also utilized in the preparation of cysteine protease inhibitors due to the structural similarity with natural amino acid motifs.