Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) that require functionalized piperidine or pyridine moieties. Its protected dihydropyridine structure allows selective reactions at specific sites, making it valuable in multi-step organic syntheses. Commonly employed in medicinal chemistry for constructing nitrogen-containing heterocycles found in bioactive molecules. Also utilized in the preparation of kinase inhibitors, CNS agents, and other therapeutic compounds where controlled ring formation and functional group compatibility are critical.