6-Amino-3-(bromomethyl)-2-(difluoromethyl)pyridine-4-acetonitrile
3-Amino-2-(bromomethyl)-5-(difluoromethyl)pyridine-4-methanol
2-Amino-5-(chloromethyl)-3-(difluoromethyl)pyridine-4-acetic acid
2-Amino-5-(bromomethyl)-3-(difluoromethyl)pyridine-6-acetonitrile