Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of alkaloid-based drugs. Its structure supports the construction of complex nitrogen-containing heterocycles, which are common in bioactive molecules. Commonly employed in medicinal chemistry for preparing protease inhibitors and receptor antagonists. Also utilized in solid-phase and solution-phase peptide synthesis due to the stability and ease of removal of the Boc (tert-butoxycarbonyl) protecting group. Its carboxylic acid functionality allows for coupling reactions, enabling the assembly of larger molecular architectures in drug discovery programs.