3-Hydroxy-6-iodo-2-nitro-4-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-cyano-6-(trifluoromethoxy)pyridine-2-acetic acid
4-Cyano-3-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-methanol
3-(Chloromethyl)-5-cyano-2-(trifluoromethoxy)pyridine-6-acetic acid