Used as a chiral auxiliary and protecting group in organic synthesis, particularly in asymmetric synthesis of complex molecules. Its oxazoline rings coordinate well with metal catalysts, enabling stereoselective transformations such as alkylations, aldol reactions, and Diels-Alder cycloadditions. The tert-butyloxycarbonyl (Boc) group allows for easy deprotection under mild acidic conditions, making it valuable in multi-step synthesis of pharmaceuticals and natural products. Commonly employed in the development of enantiomerically pure intermediates for drug discovery.