4-(Trifluoromethoxy)-2,3,5-trihydroxypyridine
6-(Trifluoromethoxy)-2,3,4-trihydroxypyridine
5-(Trifluoromethoxy)-2,3,4-trihydroxypyridine
5-Cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
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