Used as a key intermediate in the synthesis of antiviral drugs, particularly in the production of nucleoside analogs. Its rigid cyclopropane structure helps mimic sugar moieties, enhancing binding selectivity to viral polymerases. Commonly employed in the development of therapies targeting hepatitis B and HIV due to its ability to improve metabolic stability and bioavailability in final drug compounds. Also utilized in the preparation of chiral building blocks for pharmaceuticals where stereochemistry is critical for biological activity.