4-Amino-2-hydroxy-3-(trifluoromethoxy)pyridine-6-sulfonamide
5-Amino-4-iodo-2-nitro-3-(trifluoromethoxy)pyridine
3-Amino-5-hydroxy-6-(trifluoromethoxy)pyridine-2-sulfonamide
3-Amino-5-hydroxy-2-(trifluoromethoxy)pyridine-6-sulfonamide
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