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