Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and other biologically active molecules. The tetrahydro-1,6-naphthyridine core, protected with a tert-butoxycarbonyl (Boc) group at the 6-position and featuring a carboxylic acid at the 2-position, enables selective functionalization. This makes it valuable in medicinal chemistry for constructing complex heterocyclic systems. Commonly employed in research settings for drug discovery programs targeting cancer and inflammatory diseases, facilitating structure-activity relationship (SAR) studies.