6-Amino-2-(aminomethyl)-4-(difluoromethyl)pyridine-3-carboxylic acid
2-Amino-3-(aminomethyl)-5-(difluoromethyl)pyridine-6-carboxaldehyde
4-Amino-2-(aminomethyl)-6-(difluoromethyl)pyridine-3-carboxylic acid
2-Amino-6-(aminomethyl)-3-(difluoromethyl)pyridine-4-carboxylic acid