Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the development of central nervous system (CNS) drugs. Its stereochemistry plays a critical role in ensuring high enantioselectivity and biological activity in final drug compounds. Commonly employed in the production of serotonin and norepinephrine reuptake inhibitors, where the (S)-enantiomer contributes to enhanced binding affinity at target receptors. Also utilized in research settings for asymmetric synthesis and development of novel bioactive molecules.