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