Used as an intermediate in peptide synthesis and pharmaceutical manufacturing, particularly in the development of bioactive molecules and drug candidates. Its protected amine and ester functional groups make it suitable for stepwise assembly of complex amines and amino acid derivatives. Commonly employed in the preparation of protease inhibitors, receptor agonists, and other therapeutic agents where controlled coupling and deprotection are required. Also utilized in research settings for the synthesis of labeled compounds and prodrugs due to its modifiable functional groups.