Boc-Ala-OSu is widely used in peptide synthesis as a protective agent for amino acids. It helps in the selective protection of the amine group of alanine, allowing for controlled peptide chain elongation. This compound is particularly useful in solid-phase peptide synthesis (SPPS), where it ensures the stability and reactivity of the amino acid during coupling reactions. Its application extends to the production of complex peptides and proteins in pharmaceutical research, enabling the development of therapeutic agents and biochemical studies. Additionally, Boc-Ala-OSu is employed in the synthesis of peptide-based drugs, vaccines, and diagnostic tools, contributing significantly to advancements in medicinal chemistry.