Used primarily as a chiral intermediate in the synthesis of pharmaceuticals, particularly in the production of antibiotics such as penicillins and cephalosporins. Its enantiomerically pure structure makes it valuable for introducing stereochemical control during drug synthesis. It also serves as a building block in the preparation of other bioactive molecules where specific chirality is required for activity. Commonly employed in resolution processes and asymmetric synthesis due to its stability and reactivity profile.