Used as a protected intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. The tert-butoxycarbonyl (Boc) group provides amine protection during peptide coupling or heterocyclic assembly, allowing selective reactivity at other functional sites. The 2-chloropyridin-4-yl moiety serves as a versatile building block for cross-coupling reactions, enabling the introduction of pyridine-based pharmacophores. Commonly employed in multi-step organic syntheses where stability under varying reaction conditions and controlled deprotection are required.