Used in peptide synthesis and medicinal chemistry as a protected building block for introducing propargyl-modified amino alcohol functionalities. Its alkyne group enables click chemistry reactions, particularly copper-catalyzed azide-alkyne cycloaddition (CuAAC), allowing efficient conjugation with azide-containing molecules for bioconjugation, labeling, or drug discovery applications. The Boc-protected amino alcohol structure provides stability and selective deprotection for stepwise synthesis. Commonly employed in the development of peptidomimetics, enzyme inhibitors, and functionalized polymers.