Used as a chiral building block in the synthesis of biologically active compounds, particularly in pharmaceutical development. Its structure contains both a protected amine and a carboxylic acid functional group, making it suitable for peptide-like coupling reactions. The cyclopentene core with defined stereochemistry allows for the construction of constrained ring systems often found in protease inhibitors or receptor modulators. Commonly employed in medicinal chemistry for structure-activity relationship studies where stereochemistry and conformational rigidity influence potency and selectivity.