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