Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its rigid azetidine ring structure supports conformational control, enhancing selectivity and potency in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its ability to mimic peptide bonds and stabilize specific molecular geometries. Also utilized in the preparation of enzyme inhibitors and as an intermediate in asymmetric synthesis.