Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds where stereochemistry plays a critical role. Its protected amine and ester functionalities allow for selective transformations, making it valuable in multi-step organic syntheses. Commonly employed in the preparation of protease inhibitors, central nervous system agents, and other medicinally relevant molecules requiring enantiomeric purity. The tert-butyl and methyl ester groups can be selectively deprotected to enable further functionalization, offering flexibility in drug design and optimization.