2-Hydroxy-4-iodo-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-Cyano-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
2-Hydroxy-3-iodo-6-(trifluoromethoxy)pyridine-5-carboxaldehyde
4-Cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-acetic acid