Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the production of antidepressant and antipsychotic drugs. Its trifluoromethyl-substituted phenyl group enhances metabolic stability and binding affinity in active compounds. Commonly employed in the development of serotonin and norepinephrine reuptake inhibitors due to its structural configuration and functional group compatibility. Also utilized in asymmetric synthesis to introduce stereochemical control in complex drug molecules.