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