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