Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of beta-lactam antibiotics. Its iodomethyl group allows for efficient alkylation and coupling reactions, making it valuable in asymmetric synthesis. Commonly employed in the preparation of optically active intermediates for protease inhibitors and other bioactive molecules. Also utilized in radiolabeling studies due to the presence of iodine, enabling tracking in metabolic pathways.