Used as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of sulfur-containing bioactive molecules. Its stereochemistry allows for selective reactions in asymmetric synthesis, making it valuable in producing enantiomerically pure drugs. Commonly employed in the preparation of protease inhibitors and other therapeutic agents where thioamide functionality enhances metabolic stability. Also utilized in research for designing enzyme inhibitors due to the thioamide group’s ability to mimic peptide bonds while resisting degradation.