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 carboxylic acid functionalities make it ideal for peptide-like structures and heterocyclic scaffolds. Commonly employed in medicinal chemistry for constructing beta-amino acid derivatives and azetidine-containing drug candidates, which are explored for their metabolic stability and conformational restraint in drug design.