3-Hydroxy-2-(trifluoromethoxy)pyridine-5-sulfonamide
4-Methyl-2-(trifluoromethoxy)pyridine-6-sulfonyl chloride
5-Methyl-3-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2-Hydroxy-5-(trifluoromethoxy)pyridine-4-sulfonamide
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