Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring high enantiomeric purity. Its trifluoromethoxy group enhances metabolic stability and lipophilicity, making it valuable in optimizing drug candidates for improved bioavailability and CNS penetration. Commonly employed in the preparation of cardiovascular agents, antidepressants, and antiviral drugs. Also utilized in asymmetric synthesis to introduce chirality in complex molecule construction.