Used in peptide synthesis as a protected intermediate, particularly in the preparation of modified peptides and peptidomimetics. The Boc-protected homoserine lactone is valuable for introducing homoserine or its derivatives at specific positions in a peptide chain. Its lactone structure allows for selective ring-opening reactions, enabling the introduction of side-chain functionalized amino acids. Commonly applied in the synthesis of biologically active compounds, including enzyme inhibitors and antimicrobial peptides. Also utilized in solid-phase peptide synthesis due to its stability and compatibility with standard coupling and deprotection conditions.