3-(Aminomethyl)-5-cyano-2-(difluoromethyl)pyridine-6-carboxaldehyde
3-(Aminomethyl)-4-cyano-2-(difluoromethyl)pyridine-6-carboxaldehyde
4-(Aminomethyl)-2-cyano-3-(difluoromethyl)pyridine-6-carboxylic acid
3-(Aminomethyl)-4-cyano-6-(difluoromethyl)pyridine-2-carboxylic acid