5-(Bromomethyl)-2-cyano-3-(trifluoromethoxy)pyridine-4-carboxaldehyde
4-(Bromomethyl)-5-cyano-3-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Fluoro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine-6-carboxylic acid
4-(Bromomethyl)-3-cyano-2-(trifluoromethoxy)pyridine-5-carboxaldehyde