4-(Aminomethyl)-2-bromo-3-(difluoromethyl)pyridine-6-acetonitrile
5-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-4-acetonitrile
2-Bromo-6-(bromomethyl)-4-(difluoromethyl)pyridine-3-acetonitrile
5-(Aminomethyl)-3-bromo-4-(difluoromethyl)pyridine-2-acetonitrile