Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of enzyme inhibitors and central nervous system agents. Its trifluoromethyl group enhances metabolic stability and membrane permeability, making it valuable in medicinal chemistry. The amine functionalities allow for coupling reactions, enabling incorporation into larger bioactive molecules. Commonly employed in asymmetric synthesis due to its stereochemical purity, it helps control the configuration of final drug compounds.