Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the production of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role in drug efficacy and safety. Its enantiomeric purity makes it valuable in asymmetric synthesis, especially in the development of central nervous system agents, appetite suppressants, and other bioactive molecules. Commonly employed in the preparation of intermediates for antidepressants and stimulant drugs. Also utilized in research settings for the development of novel chiral catalysts and ligands.