Ethyl 5-bromo-2-(bromomethyl)-3-(difluoromethyl)pyridine-6-carboxylate
Methyl 2-bromo-6-(difluoromethyl)-3-methylpyridine-4-carboxylate
Methyl 6-bromo-3-(difluoromethyl)-2-methylpyridine-4-carboxylate
Ethyl 4-bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-3-carboxylate