(1R,3R)-Methyl 3-aminocyclopentanecarboxylate hydrochloride is primarily used in pharmaceutical research and development as a chiral building block or intermediate in the synthesis of more complex molecules. Its stereochemistry makes it valuable for creating enantiomerically pure compounds, which are critical in drug design to ensure specificity and reduce side effects. It is often employed in the preparation of active pharmaceutical ingredients (APIs) for therapeutic agents targeting neurological disorders, cardiovascular diseases, or other conditions where chiral specificity is essential. Additionally, it may serve as a precursor in the development of peptidomimetics or small-molecule inhibitors, contributing to advancements in medicinal chemistry.