Ethyl 2-(bromomethyl)-5-chloro-4-(difluoromethyl)pyridine-3-acetate
Ethyl 6-(bromomethyl)-4-chloro-2-(difluoromethyl)pyridine-3-acetate
3-Chloro-5-(difluoromethyl)-2-fluoropyridine-4-sulfonamide
2-Chloro-5-(chloromethyl)-4-(difluoromethyl)pyridine-3-acetonitrile