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