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