Used as a chiral auxiliary in asymmetric synthesis, particularly in enantioselective carbon-carbon bond-forming reactions. Its rigid cyclic structure and defined stereochemistry make it valuable for controlling stereoselectivity in aldol and alkylation reactions. Commonly employed in pharmaceutical intermediates synthesis where high enantiomeric purity is required. The sulfonamide group allows for easy attachment to substrates and subsequent removal under mild conditions, making it suitable for multi-step synthetic routes.