(1S,4R)-4-Aminocyclopent-2-enecarboxylic acid hydrochloride is primarily used in pharmaceutical research and development. It serves as a key intermediate in the synthesis of various bioactive compounds, particularly those targeting neurological disorders. Its structure is valuable in designing drugs that interact with neurotransmitter systems, such as GABA analogs, which are used to treat conditions like epilepsy, anxiety, and chronic pain. Additionally, it is utilized in the development of enzyme inhibitors and receptor modulators, contributing to advancements in medicinal chemistry and drug discovery.