5-Cyano-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Chloro-2-fluoro-6-(trifluoromethoxy)pyridine-3-sulfonamide
4-Cyano-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Chloro-5-fluoro-6-(trifluoromethoxy)pyridine-2-sulfonamide