5-Nitro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetonitrile
2,3-Dichloro-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
2,6-Dibromo-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Methyl-6-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetic acid