Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the preparation of peptide mimetics and β-amino acid derivatives. Its protected enamine structure allows for selective reactions in multi-step organic syntheses, making it valuable in drug development. Commonly employed in the construction of protease inhibitors and other bioactive molecules where controlled stereochemistry is essential. The tert-butoxycarbonyl (Boc) group enables easy deprotection under mild acidic conditions, facilitating further functionalization in synthetic pathways.