Used as a chiral auxiliary in asymmetric synthesis, particularly in the preparation of optically active pharmaceuticals. It enables stereocontrol during carbon-carbon bond formation, commonly employed in antibiotic synthesis such as linezolid. Its structure facilitates high enantioselectivity and can be recycled after reaction, making it valuable in industrial-scale enantioselective processes. Also utilized in the development of beta-amino alcohols and other nitrogen-containing bioactive molecules.