Used primarily as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of serine protease inhibitors. It plays a key role in the preparation of anticoagulant and antithrombotic agents due to its ability to mimic arginine residues, which are recognized by enzymes such as thrombin and trypsin. Its structural features make it suitable for enhancing metabolic stability and binding affinity in drug candidates targeting blood coagulation pathways. Also employed in research settings for probing enzyme mechanisms and designing enzyme inhibitors.