Used in pharmaceutical synthesis as a key intermediate for developing bioactive molecules, particularly in the production of enzyme inhibitors and central nervous system agents. Its rigid bicyclic structure enhances selectivity and binding affinity in drug candidates. Commonly employed in the development of antiviral and neuroactive compounds due to its ability to mimic natural amino acid motifs while providing metabolic stability. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies involving proline analogs.