4-Fluoro-3-methoxy-6-(trifluoromethoxy)pyridine-2-sulfonamide
4-Cyano-2-hydroxy-5-methyl-3-(trifluoromethoxy)pyridine
4-Fluoro-2-methoxy-6-(trifluoromethoxy)pyridine-3-sulfonamide
5-Cyano-3-hydroxy-2-methyl-4-(trifluoromethoxy)pyridine
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