2-Cyano-6-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine
Methyl 5-cyano-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetate
2-Cyano-6-(difluoromethyl)-3-nitro-5-(trifluoromethoxy)pyridine
Methyl 3-cyano-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetate