Used in peptide synthesis as a protecting group for amino acids, specifically for the side chain of diaminobutyric acid (Dab). It helps in selective deprotection during solid-phase peptide synthesis, enabling the stepwise construction of complex peptides. Commonly applied in the synthesis of bioactive peptides and peptidomimetics, where precise control over amino acid reactivity is essential. Its orthogonal protection strategy allows for the efficient synthesis of peptides with multiple functional groups.