Used primarily as an intermediate in the synthesis of pharmaceuticals, especially in the development of active pharmaceutical ingredients (APIs) involving piperidine derivatives. Its Boc-protected amine group allows for selective reactivity, making it valuable in multi-step organic syntheses where controlled deprotection and functionalization are required. The chloromethyl group serves as a reactive handle for nucleophilic substitution, enabling the introduction of various side chains or heterocyclic systems. Commonly employed in the preparation of central nervous system agents, including analgesics, antipsychotics, and other bioactive molecules. Also utilized in medicinal chemistry for library synthesis in drug discovery due to its structural versatility and compatibility with solid-phase and solution-phase peptide-like synthesis techniques.