Used as a chiral building block in the synthesis of pharmaceuticals, particularly in the development of protease inhibitors and other bioactive molecules. Its rigid azabicyclic structure and stereochemical configuration make it valuable for inducing specific conformational properties in peptide mimetics. The Fmoc group allows for easy incorporation into solid-phase peptide synthesis, enabling the construction of complex peptides with enhanced stability and selectivity. Commonly employed in medicinal chemistry for drug discovery targeting neurological disorders and metabolic diseases.