3-Nitro-4-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-carboxamide
3-Nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-6-carboxamide
3-Nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-6-carboxamide
3-Nitro-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-carboxamide