Used as an intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and central nervous system agents. Its spirocyclic structure with a fluorinated aromatic ring enhances binding selectivity and metabolic stability in drug candidates. Commonly employed in medicinal chemistry for structure-activity relationship (SAR) studies due to its rigid framework and ability to modulate physicochemical properties. Also utilized in the preparation of protease inhibitors and receptor antagonists in preclinical research.