This compound is primarily utilized in the synthesis of peptides and other complex organic molecules. It serves as a protective group for the amino acid serine, allowing selective reactions to occur at other sites without interference. The β-lactone structure is particularly useful in ring-opening reactions, which can be employed to create specific linkages in peptide chains. Additionally, it is used in the preparation of serine derivatives for pharmaceutical research, where precise control over molecular structure is critical. Its application extends to the development of bioactive compounds and intermediates in medicinal chemistry.