Ethyl 3-cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetate
2-Cyano-5-fluoro-3-(fluoromethyl)-4-(trifluoromethoxy)pyridine
Ethyl 3-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-5-acetate
6-Cyano-4-fluoro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine