2-Cyano-5-nitro-6-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
2-(Aminomethyl)-3-cyano-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
6-Cyano-3-nitro-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
3-Cyano-6-nitro-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine