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