Used in organic synthesis as a building block for pharmaceuticals, particularly in the development of nitrogen-containing heterocyclic compounds. Acts as a sulfonamide-based reagent to introduce the azetidine ring, which is valuable in medicinal chemistry for enhancing metabolic stability and bioavailability in drug candidates. Employed in the preparation of enzyme inhibitors and receptor modulators, especially in research targeting central nervous system disorders and infectious diseases. Its strained ring structure contributes to unique reactivity, making it useful in ring-expansion and cycloaddition reactions.