Used in the synthesis of peptidomimetic drugs and bioactive molecules, particularly in the development of enzyme inhibitors and receptor ligands. Its chiral (S)-configuration makes it valuable in asymmetric synthesis for pharmaceuticals where stereochemistry affects biological activity. Commonly employed as an intermediate in the preparation of protease inhibitors and in solid-phase peptide synthesis due to the protected ester group and activated aromatic ring for further functionalization. Also utilized in medicinal chemistry research for structure-activity relationship (SAR) studies involving amino acid derivatives.