Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of active pharmaceutical ingredients (APIs) requiring stereochemical control. Its hydroxyl and protected amine functionalities allow for selective modifications, making it valuable in constructing complex molecules such as CNS agents, antiviral drugs, and kinase inhibitors. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its rigid piperidine scaffold and defined stereochemistry.