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