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