3-Amino-2-(bromomethyl)-5-(difluoromethyl)pyridine-4-acetonitrile
Ethyl 2-amino-4-(aminomethyl)-3-(difluoromethyl)pyridine-5-acetate
4-Amino-3-(aminomethyl)-6-(difluoromethyl)pyridine-2-acetic acid
Ethyl 2-amino-3-(aminomethyl)-5-(difluoromethyl)pyridine-6-acetate