3-Chloro-5-fluoro-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
6-Bromo-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
5-Chloro-4-fluoro-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-Chloro-2-fluoro-5-(trifluoromethoxy)pyridine-6-carboxaldehyde