Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of central nervous system (CNS) agents. Its structure allows for selective modifications at both the piperidine nitrogen and the carboxylic acid group, making it valuable in constructing bioactive molecules. Commonly employed in the preparation of receptor agonists and antagonists, especially for neurological targets such as serotonin and dopamine receptors. Also utilized in the production of protease inhibitors due to its ability to mimic amino acid frameworks in peptidomimetic design.