Ethyl 4-bromo-2-(difluoromethyl)-6-fluoropyridine-3-carboxylate
Ethyl 4-bromo-2-(difluoromethyl)-5-fluoropyridine-3-carboxylate
Ethyl 4-bromo-2-(difluoromethyl)-3-fluoropyridine-5-carboxylate
3-Bromo-5-(bromomethyl)-6-cyano-2-(difluoromethyl)pyridine