Ethyl 4-cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-3-acetate
Ethyl 3-cyano-5-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-2-acetate
2-Cyano-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-acetonitrile
4-Cyano-3-(difluoromethyl)-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine