Used as a key intermediate in the synthesis of biologically active compounds, particularly pharmaceuticals. Its structure allows for selective modifications in drug development, especially in creating analogs with central nervous system activity. The bromomethyl group enables alkylation reactions, while the fluorinated pyrrolidine core enhances metabolic stability and membrane permeability. Commonly employed in the preparation of protease inhibitors and receptor modulators. Also utilized in medicinal chemistry for building complex nitrogen-containing heterocycles through ring expansion or coupling reactions.