Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of central nervous system (CNS) agents and antidepressants. Its enantiomeric purity makes it valuable in creating active ingredients where stereochemistry affects drug efficacy and safety. Commonly employed in asymmetric synthesis and as an intermediate in the preparation of trifluoromethyl-substituted aryl compounds, which are known for enhanced metabolic stability and bioavailability. Also utilized in research for novel bioactive molecules due to the favorable pharmacokinetic properties imparted by the trifluoromethyl group.