Used primarily in peptide synthesis, this compound acts as a protected form of 4,5-dehydro-L-leucine, facilitating the controlled construction of peptide chains with unsaturated amino acid incorporation. Its application is crucial in the development of pharmaceuticals, particularly in the synthesis of peptide-based drugs where precise modified amino acid integration is required. The Boc (tert-butoxycarbonyl) protecting group ensures that the amino acid remains stable during the synthesis process, preventing unwanted side reactions. Additionally, the DCHA (dicyclohexylamine) salt form enhances the compound's solubility and handling properties, making it easier to work with in laboratory settings. This chemical is also employed in research focused on understanding protein structures and functions, as well as in the production of custom peptides for biochemical studies, including applications in designing bioactive peptides or mimicking unsaturated residues.