Used as an intermediate in pharmaceutical synthesis, particularly in the development of central nervous system agents. It serves as a building block for piperidine-based compounds, which are common in analgesics, antipsychotics, and other neuroactive drugs. The tert-butyloxycarbonyl (Boc) protecting group allows for selective functionalization of the piperidine nitrogen during multi-step synthesis. Its phenyl-substituted structure enhances lipophilicity, aiding in blood-brain barrier penetration for targeted neurological effects. Commonly employed in research settings for structure-activity relationship studies in medicinal chemistry.