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