Boc-O-benzyl-L-beta-homoserine is widely used in peptide synthesis as a protected amino acid derivative. It serves as a key intermediate in the preparation of complex peptides and proteins, particularly in solid-phase peptide synthesis (SPPS). The Boc (tert-butoxycarbonyl) group protects the amino group, while the benzyl group shields the hydroxyl group, allowing selective deprotection and coupling during peptide chain assembly. This compound is especially valuable in synthesizing peptides with beta-homoserine residues, which are important in studying protein structure, function, and interactions. It is also utilized in the development of peptide-based drugs, biomaterials, and biochemical probes, contributing to advancements in medicinal chemistry and biotechnology.