This compound is primarily utilized in peptide synthesis as an active ester intermediate. Its structure facilitates the coupling of amino acids during the formation of peptide bonds, making it valuable in the production of complex peptides and proteins. The phenylmethoxycarbonyl (Fmoc) group acts as a protective moiety for the amino group, ensuring selective reactivity during synthesis. Additionally, the 2,5-dioxopyrrolidin-1-yl group enhances the compound's reactivity, enabling efficient conjugation in solid-phase peptide synthesis (SPPS). It is particularly useful in pharmaceutical research and development, where precise peptide sequences are required for drug discovery and biochemical studies.