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