Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of active pharmaceutical ingredients (APIs) involving piperidine scaffolds. Its functional groups allow for selective modifications, making it valuable in medicinal chemistry for constructing complex molecules. Commonly employed in the preparation of protease inhibitors and receptor antagonists. Also utilized in solid-phase and solution-phase peptide-like synthesis due to its ability to introduce protected nitrogen and multiple ester functionalities in a single unit.