Used as a chiral building block in organic synthesis, particularly in the preparation of pharmaceuticals and natural products. Its hydroxyl and olefin functionalities allow for selective transformations, such as oxidation, reduction, and cross-coupling reactions. The protected alcohol (benzyloxymethyl group) enables stepwise deprotection and functionalization, making it valuable in multi-step syntheses where stereocontrol is critical. Commonly employed in the development of antiviral and anticancer agents due to its rigid cyclopentene scaffold and defined stereochemistry.