Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the production of anticoagulant drugs and beta-amino acid derivatives. It serves as a chiral building block in asymmetric synthesis, enabling the construction of complex molecules with high enantioselectivity. Its lactone structure allows for ring-opening and functionalization reactions, making it valuable in medicinal chemistry for developing bioactive compounds. Also employed in the preparation of prodrugs and enzyme inhibitors due to its ability to mimic natural metabolites.