2,4-Dihydroxy-5-(trifluoromethoxy)pyridine-3-sulfonamide
5-(Chloromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine
2,3-Dihydroxy-6-(trifluoromethoxy)pyridine-5-sulfonamide
4-(Chloromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine
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