Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its azetidine ring serves as a constrained scaffold that can improve metabolic stability and binding affinity in drug candidates. Commonly employed in medicinal chemistry for the preparation of protease inhibitors, CNS agents, and other therapeutic targets requiring a rigid amine structure. The hydrochloride salt enhances solubility and handling in synthetic processes.