Used in the synthesis of pharmaceutical intermediates, particularly in the development of antiviral and anticonvulsant drugs. Its rigid tricyclic structure makes it valuable as a chiral building block in asymmetric synthesis, enabling the creation of stereochemically complex molecules. Commonly employed in medicinal chemistry for modifying drug candidates to improve metabolic stability and binding selectivity. Also utilized in the preparation of enzyme inhibitors due to its ability to mimic transition states in biochemical reactions.