Used as an intermediate in organic synthesis, particularly in the preparation of pharmaceuticals and biologically active compounds. Its ester and amine functionalities make it suitable for peptide-like chain extensions and the formation of nitrogen-containing heterocycles. Commonly employed in the development of enzyme inhibitors and receptor ligands due to its structural flexibility and ability to mimic natural substrates. Also utilized in medicinal chemistry for structure-activity relationship (SAR) studies, where the ethyl ester and benzyl groups can be modified to optimize pharmacokinetic properties.