Used as a key chiral intermediate in the synthesis of biologically active compounds, particularly in pharmaceuticals targeting central nervous system disorders. Its structure enables high enantioselectivity in drug design, making it valuable in the development of selective serotonin reuptake inhibitors (SSRIs) and other neuroactive agents. The trifluoromethyl group enhances metabolic stability and membrane permeability, improving drug efficacy. Commonly employed in asymmetric synthesis routes where stereochemical purity is critical for therapeutic activity.