4-Chloro-5-cyano-2-(trifluoromethoxy)pyridine-3-sulfonamide
4-Chloro-3-cyano-5-(trifluoromethoxy)pyridine-2-sulfonamide
4-Chloro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-methanol
3-Chloro-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-2-methanol