N-Carbobenzoxy-4-hydroxy-D-2-phenylglycine is a chiral protected amino acid derivative employed in organic synthesis, especially peptide synthesis. The carbobenzoxy (Z) protecting group shields the amino group, facilitating selective activation and coupling at the carboxylic acid. It is also used in preparing chiral intermediates for pharmaceuticals, supporting the synthesis of enantiomerically pure drugs. Additionally, it serves as a building block for biologically active molecules in medicinal chemistry research.