Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of central nervous system (CNS) agents and analgesics. Its structure supports the creation of bioactive molecules by serving as a building block for ligands targeting neurotransmitter receptors. Commonly employed in medicinal chemistry for optimizing drug candidates due to its favorable solubility and ability to mimic peptide-like features. Also utilized in the preparation of prodrugs and enzyme inhibitors where a constrained ring system enhances metabolic stability.