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