4-Chloro-2-iodo-3-nitro-5-(trifluoromethoxy)pyridine
4-Chloro-6-hydroxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Bromo-4-(fluoromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Chloro-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde