Ethyl 5-amino-2-(aminomethyl)-3-(difluoromethyl)pyridine-4-carboxylate
5-Amino-2-(difluoromethyl)-3-methylpyridine-6-acetonitrile
Ethyl 4-amino-5-(aminomethyl)-3-(difluoromethyl)pyridine-2-carboxylate
2-Amino-3-(difluoromethyl)-5-methylpyridine-6-methanol