2-(Aminomethyl)-6-bromo-3-(difluoromethyl)pyridine-4-acetic acid
6-(Aminomethyl)-3-bromo-2-(difluoromethyl)pyridine-4-acetic acid
3-Chloro-4-cyano-2-(difluoromethyl)pyridine-6-carboxaldehyde
2-(Aminomethyl)-5-bromo-4-(difluoromethyl)pyridine-3-acetic acid