Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its trifluoromethyl group enhances metabolic stability and lipophilicity, making it valuable in medicinal chemistry for improving drug potency and pharmacokinetics. The Boc-protected amine allows for selective deprotection and coupling in peptide-like structures, enabling controlled stepwise synthesis. Commonly employed in research settings for designing enzyme inhibitors and optimizing lead compounds in drug discovery.