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