2-Hydroxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-acetonitrile
2-Hydroxy-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-acetonitrile
6-Hydroxy-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-methanol
3-(Difluoromethyl)-6-hydroxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine