2,3-Dihydroxy-5-(trifluoromethoxy)pyridine-6-sulfonamide
2,3-Diamino-4-methyl-5-(trifluoromethoxy)pyridine
3,4-Dihydroxy-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
2,3-Dihydroxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid
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