(1R,4S)-rel-4-Aminocyclopent-2-enecarboxylic acid is primarily utilized in the field of medicinal chemistry and drug development. It serves as a key intermediate or building block in the synthesis of various biologically active compounds, particularly those targeting neurological and psychiatric disorders. Its unique structure, featuring both an amino group and a carboxylic acid on a cyclopentene ring, makes it valuable for designing molecules that interact with specific receptors or enzymes in the central nervous system. Additionally, it is explored in the development of peptide mimetics and small-molecule inhibitors, contributing to advancements in treatments for conditions such as epilepsy, depression, and neurodegenerative diseases. Its stereochemistry also plays a critical role in enhancing the selectivity and efficacy of therapeutic agents.