Used as an activated carbonate reagent in organic synthesis, particularly for the efficient coupling of carboxylic acids with amines to form amide bonds. It is especially valuable in peptide synthesis and the preparation of bioconjugates due to its ability to operate under mild conditions with high selectivity. The (E)-cyclooctenyl group can serve as a traceless or cleavable linker in solid-phase synthesis or targeted delivery systems. Its stability in various solvents and controlled reactivity make it suitable for use in multi-step synthetic sequences where orthogonal protection strategies are required.