6-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-2-sulfonamide
2-Hydroxy-3-methyl-4-nitro-6-(trifluoromethoxy)pyridine
2-Hydroxy-4-methoxy-3-(trifluoromethoxy)pyridine-5-sulfonamide
2-Hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine-6-sulfonamide
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