5-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-6-methanol
2-Cyano-6-(fluoromethyl)-5-methyl-3-(trifluoromethoxy)pyridine
4-Cyano-3-hydroxy-6-(trifluoromethoxy)pyridine-2-methanol
6-Cyano-3-(fluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine
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