3-Bromo-6-cyano-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
6-Bromo-2-(fluoromethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine
6-Bromo-3-(fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine
2-Bromo-3-(fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine