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