Used as an intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where chiral amino acid derivatives are required. Its unprotected amine group and tert-butyl ester protecting functionality make it suitable for peptide coupling and selective deprotection strategies in multi-step organic syntheses. Commonly employed in the preparation of protease inhibitors and other bioactive molecules due to its branched alkyl chain and stereochemical properties. Also utilized in the design of enzyme substrates and in medicinal chemistry for structure-activity relationship (SAR) studies.