2-Cyano-3-iodo-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
6-Chloro-2-(fluoromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine
4-Chloro-5-(chloromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
3-Cyano-5-iodo-2-(trifluoromethoxy)pyridine-6-sulfonamide