Used as an intermediate in pharmaceutical synthesis, particularly in the development of bioactive molecules and drug candidates. Its piperazine core and protected amine group make it valuable in constructing complex amines through coupling reactions. The alkyne functionality allows for use in click chemistry, especially copper-catalyzed azide-alkyne cycloaddition (CuAAC), enabling efficient conjugation in medicinal chemistry and bioconjugation applications. Commonly employed in the preparation of kinase inhibitors, receptor agonists/antagonists, and targeted therapies where modular assembly of molecular fragments is required.