Used as a key chiral intermediate in the synthesis of pharmaceutical agents, particularly in the development of angiotensin II receptor antagonists for the treatment of hypertension. Its stereochemistry enables selective interactions in drug molecules, enhancing efficacy and reducing side effects. Commonly employed in peptide coupling reactions due to the protected amine group, allowing stepwise construction of complex bioactive molecules. The presence of halogen substituents facilitates further functionalization through cross-coupling reactions, expanding its utility in medicinal chemistry.