Ethyl 4-chloro-6-(difluoromethyl)-2-fluoropyridine-3-carboxylate
Ethyl 3-chloro-4-(difluoromethyl)-5-fluoropyridine-2-carboxylate
Ethyl 3-chloro-2-(difluoromethyl)-6-fluoropyridine-5-carboxylate
3-Bromo-2-(bromomethyl)-6-(difluoromethyl)-5-(trifluoromethyl)pyridine