4-Bromo-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
4-Chloro-2-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
5-Bromo-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
5-Chloro-3-fluoro-4-(trifluoromethoxy)pyridine-2-carboxylic acid