2-(Difluoromethyl)-3-hydroxypyridine-4-acetonitrile
3-(Difluoromethyl)-6-hydroxy-2-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-hydroxy-4-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-hydroxy-3-(trifluoromethyl)pyridine
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