2-(Aminomethyl)-4-cyano-3-nitro-6-(trifluoromethoxy)pyridine
5-Cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetonitrile
3-Fluoro-2-(fluoromethyl)-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
4-Cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetonitrile