Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the preparation of anticoagulant drugs. Its enantiomerically pure structure makes it valuable for asymmetric synthesis, where it helps control stereochemistry in complex molecules. Commonly employed in the development of vitamin K antagonists, such as certain coumarin derivatives, due to its ability to mimic key structural elements in biologically active compounds. Also utilized in research settings for the preparation of enzyme inhibitors and receptor ligands where stereochemistry plays a critical role in activity.