Ethyl 3-cyano-4-fluoro-5-(trifluoromethoxy)pyridine-2-carboxylate
6-(Chloromethyl)-3-cyano-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
2-Chloro-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetonitrile
6-Chloro-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetonitrile