Used as a chiral building block in the synthesis of active pharmaceutical ingredients, particularly in the development of protease inhibitors and other bioactive molecules. Its rigid bicyclic structure and defined stereochemistry make it valuable for enhancing selectivity and metabolic stability in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to constrain conformation and improve target binding. Also utilized in asymmetric synthesis to introduce stereocenters in complex molecules.