Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of beta-blockers and other cardiovascular drugs. Its chiral center and protected amine group make it valuable in asymmetric synthesis, enabling the production of enantiomerically pure active pharmaceutical ingredients. The tert-butyl carbamate (Boc) group provides stability during reactions and can be selectively removed under mild acidic conditions, allowing for controlled stepwise synthesis. Commonly employed in research and process chemistry for constructing complex drug molecules with high stereochemical precision.