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