Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its structure contains a protected hydrazine functionality and a carboxylic acid group, making it valuable for peptide-like chain elongation and cyclization reactions. Commonly employed in medicinal chemistry for constructing constrained heterocyclic systems that mimic dipeptides. The benzyl carbamate (Cbz) protecting group allows for selective deprotection under mild conditions, enabling stepwise assembly of complex molecules. Frequently utilized in the preparation of enzyme inhibitors where stereochemistry plays a critical role in biological activity.