2-Cyano-3-methoxy-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-Chloro-5-(fluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine
5-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-methanol
6-Chloro-4-(fluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine