3-Chloro-2-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxaldehyde
4-Chloro-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-methanol
6-Chloro-2-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxaldehyde
2-Bromo-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxaldehyde