Used as an intermediate in pharmaceutical synthesis, particularly in the development of active pharmaceutical ingredients (APIs) where the piperidine ring serves as a structural backbone. The tert-butoxycarbonyl (Boc) group acts as a protecting group for the nitrogen, allowing selective reactions at other sites during multi-step syntheses. The vinyl (ethenyl) group enables further functionalization through reactions such as cross-coupling or epoxidation, making it valuable in medicinal chemistry for building complex molecules. Commonly employed in the preparation of central nervous system agents, receptor agonists, or enzyme inhibitors.