4-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-6-carboxaldehyde
4-(Aminomethyl)-6-bromo-2-(difluoromethyl)pyridine-3-carboxaldehyde
4-Chloro-3-(difluoromethyl)-2-fluoropyridine-5-acetonitrile
4-(Aminomethyl)-6-bromo-3-(difluoromethyl)pyridine-2-carboxaldehyde