2-Amino-6-nitro-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Amino-4-nitro-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
2-Amino-5-nitro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
3-Amino-2-nitro-6-(trifluoromethoxy)-5-(trifluoromethyl)pyridine