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