2-Cyano-3-fluoro-6-hydroxy-4-(trifluoromethoxy)pyridine
2-Fluoro-3-hydroxy-6-methoxy-5-(trifluoromethoxy)pyridine
2-Cyano-3-fluoro-4-hydroxy-6-(trifluoromethoxy)pyridine
4-Fluoro-3-hydroxy-5-methyl-2-(trifluoromethoxy)pyridine
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