3-(Difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-acetonitrile
2-(Difluoromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-5-acetonitrile
2-(Difluoromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-6-acetonitrile
Ethyl 4-hydroxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-acetate