Used as a key intermediate in the synthesis of complex peptide-based pharmaceuticals, particularly in the production of protease inhibitors. Its protected functional groups allow for selective reactions in multi-step organic syntheses, making it valuable in developing drugs for viral diseases such as HIV and hepatitis C. The trimethylsilyl and ethoxy carbonyl groups provide stability and solubility during peptide coupling processes, improving yield and purity in final products. Commonly employed in research settings for constructing beta-amino acid frameworks and designing enzyme inhibitors.