Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) where stereochemistry plays a critical role. Its strained oxetane ring enhances metabolic stability and solubility in drug candidates. The iodomethyl group allows for further functionalization via cross-coupling reactions, making it valuable in medicinal chemistry for structure-activity relationship (SAR) studies. Commonly employed in the preparation of protease inhibitors and kinase inhibitors. Also utilized in radiolabeling applications due to the presence of iodine, enabling imaging or tracer studies in drug metabolism.