4-Cyano-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-5-carboxaldehyde
4-Cyano-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-2-carboxaldehyde
4-Cyano-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-5-carboxaldehyde
4-Cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid