Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other bioactive molecules. Its structure supports the construction of complex heterocyclic systems found in drug candidates targeting cancer and inflammatory diseases. The tert-butyl ester serves as a protecting group for the carboxylate, facilitating selective reactions at the free amino group and enabling efficient multi-step synthesis. Commonly employed in medicinal chemistry for lead optimization due to its stability and compatibility with various coupling reactions.