Used as a key intermediate in the synthesis of biologically active compounds, particularly in pharmaceuticals targeting central nervous system disorders. Its strained bicyclic structure and reactive tosyl group make it valuable for ring-opening and functionalization reactions. Commonly employed in the preparation of pyrrolidine-based drug candidates, including those with antiviral and neuromodulatory properties. Also utilized in asymmetric synthesis due to its rigid scaffold, enabling selective formation of stereoisomers in medicinal chemistry research.