Used as a key chiral intermediate in the synthesis of pharmaceuticals, particularly in the development of biologically active compounds targeting central nervous system disorders and metabolic diseases. The (S)-configuration and 4,4-difluoro substitution provide high stereochemical purity and enhanced metabolic stability. Its carboxylic acid functionality supports the construction of complex molecules, while the Boc-protected piperidine scaffold improves stability and solubility during peptide-like synthesis, enabling efficient coupling reactions in multi-step organic routes.