Used as a chiral building block in organic synthesis, particularly in the preparation of pharmaceuticals and bioactive molecules. Its rigid cyclobutane backbone and functional groups allow for stereoselective transformations, making it valuable in the development of enantiomerically pure compounds. Commonly employed in the synthesis of enzyme inhibitors and cyclic peptides due to its constrained geometry and ability to mimic peptide bonds. Also utilized in materials science for designing novel polymers with specific stereochemical properties.