Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors for cancer treatment. Its structure allows for selective modification, making it valuable in medicinal chemistry for creating targeted therapies. Commonly employed in solid-phase and solution-phase peptide-like synthesis due to the presence of both carboxylic acid and protected amine functionalities. Also utilized in the preparation of fluorescent probes and bioactive molecules where quinoline derivatives exhibit favorable optical and biological properties.