This compound is the Fmoc-protected derivative of (1R,2S)-2-aminocyclohexanecarboxylic acid, a non-proteinogenic cyclic β-amino acid analog. It is used as a building block in solid-phase peptide synthesis (SPPS). The Fmoc group protects the amino functionality during selective coupling to the growing peptide chain on a solid support, with orthogonal deprotection under mild basic conditions (e.g., piperidine). This stereospecific reagent enables the incorporation of conformationally constrained structures into peptides, making it valuable in pharmaceutical research and biotechnology for developing therapeutic peptides with enhanced stability and bioactivity.