2,4-Dihydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Amino-6-hydroxy-4-(trifluoromethoxy)pyridine-2-sulfonamide
2,3-Dihydroxy-6-(trifluoromethoxy)pyridine-4-acetonitrile
5-Amino-2-hydroxy-3-(trifluoromethoxy)pyridine-4-sulfonamide
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