Used as a chiral building block in the synthesis of peptide-based pharmaceuticals. Its protected amine and carboxylic acid groups allow for selective coupling reactions, making it valuable in solid-phase peptide synthesis. The cycloheptyl group provides structural rigidity and lipophilicity, which can enhance binding affinity and metabolic stability in bioactive peptides. Commonly employed in the development of enzyme inhibitors and receptor agonists/antagonists where stereochemistry is critical for activity.