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