(3S,4S)-N-Boc-3-Benzylamino-4-hydroxypyrrolidine is a chiral, protected pyrrolidine derivative. It features a Boc-protected secondary amine, a benzylamino substituent, and a hydroxyl group on a saturated five-membered heterocyclic ring. The compound is characterized by two defined stereocenters in the (3S,4S) configuration, making it a valuable chiral building block. This compound is primarily used as a key synthetic intermediate in pharmaceutical research and development. Its pyrrolidine scaffold is a privileged structure found in numerous bioactive molecules. The presence of multiple functional groups allows for diverse chemical modifications, enabling its incorporation into more complex target structures, particularly in the synthesis of potential drug candidates. As a specialized chiral intermediate, it is not a commodity chemical but is supplied for research purposes. Its synthesis and handling require standard precautions for organic compounds, particularly those containing amine functionalities.