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