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