2-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-5-sulfonamide
3-Cyano-6-hydroxy-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
6-Fluoro-4-iodo-3-methoxy-2-(trifluoromethoxy)pyridine
2-Fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine-6-methanol
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