Used primarily in peptide synthesis as a protected amino acid building block. The cis isomer provides stereochemical control during the construction of complex peptides, helping to ensure the correct three-dimensional structure. The fluorenylmethyloxycarbonyl (Fmoc) group allows for mild base-induced deprotection, making it compatible with solid-phase synthesis. Its cyclohexane backbone introduces conformational rigidity, which can enhance peptide stability and influence biological activity. Commonly employed in research settings for developing peptidomimetics and studying structure-activity relationships.