Ethyl 3-cyano-6-fluoro-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 2-chloro-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-cyano-5-fluoro-2-(trifluoromethoxy)pyridine-3-acetate
5-(Chloromethyl)-3-cyano-2-(trifluoromethoxy)pyridine-4-acetonitrile