3-(Difluoromethyl)-5-nitro-2-(trifluoromethyl)pyridine-4-acetonitrile
4-Bromo-5-fluoro-3-iodo-2-(trifluoromethoxy)pyridine
3-Bromo-2-hydroxy-6-(trifluoromethoxy)pyridine-5-sulfonamide
5-(Aminomethyl)-2-chloro-4-(difluoromethyl)pyridine-3-acetonitrile