Ethyl 3-bromo-5-(difluoromethyl)-6-methoxypyridine-2-carboxylate
3-(Aminomethyl)-2-bromo-5-(difluoromethyl)pyridine-6-acetonitrile
Ethyl 3-bromo-5-(difluoromethyl)-2-methoxypyridine-4-carboxylate
6-(Aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-4-acetonitrile