2-Chloro-3-(chloromethyl)-4-iodo-6-(trifluoromethoxy)pyridine
3-Bromo-4-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-Bromo-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-Bromo-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine-6-carboxaldehyde