Used as a chiral building block in the synthesis of biologically active compounds, particularly in pharmaceuticals where stereochemistry plays a critical role. Its structure supports the development of enzyme inhibitors and receptor modulators. Commonly employed in asymmetric synthesis due to the stability of the thiazolidine ring and the defined stereochemistry at the 4-position. Also utilized in the preparation of peptidomimetics and as an intermediate in the production of antidiabetic and antiviral agents.