Used as a chiral auxiliary or intermediate in asymmetric synthesis, particularly in the preparation of enantiomerically pure sulfonamides and β-amino alcohols. Its rigid cyclic structure and stereochemical stability make it valuable in controlling stereochemistry during carbon–carbon bond formation. Commonly employed in pharmaceutical synthesis where stereoselectivity is critical, such as in the development of bioactive molecules and protease inhibitors. The tert-butyl carbamate-protected nitrogen allows for selective deprotection and further functionalization, enhancing its utility in multi-step synthetic routes.