Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its protected amine and ester functionalities allow for selective reactions in multi-step organic syntheses. Commonly employed in asymmetric synthesis due to its stereochemical purity, enabling the preparation of enantiomerically enriched compounds. The tert-butyl and methyl ester groups offer differential protection, facilitating controlled deprotection and coupling steps in peptide-like chain elongation. Widely applied in research settings for drug discovery and development.