4-(Aminomethyl)-2-cyano-3-(difluoromethyl)pyridine-6-carboxylic acid
3-(Aminomethyl)-4-cyano-6-(difluoromethyl)pyridine-2-carboxylic acid
Methyl 5-(aminomethyl)-4-cyano-3-(difluoromethyl)pyridine-2-acetate
Methyl 6-(aminomethyl)-2-cyano-4-(difluoromethyl)pyridine-3-acetate