Ethyl 2-bromo-5-(chloromethyl)-3-(difluoromethyl)pyridine-4-carboxylate
Ethyl 4-bromo-2-(difluoromethyl)-3-methoxypyridine-6-acetate
2-Bromo-6-(difluoromethyl)-4-nitropyridine-3-acetonitrile
Ethyl 4-bromo-5-(chloromethyl)-2-(difluoromethyl)pyridine-3-acetate