2-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-5-methanol
3-Fluoro-2-(difluoromethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine
3-Cyano-6-hydroxy-4-(trifluoromethoxy)pyridine-2-acetonitrile
5-Cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
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