Ethyl 2-(bromomethyl)-3-chloro-5-(difluoromethyl)pyridine-6-acetate
4-Chloro-5-(chloromethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine
4-Chloro-5-(difluoromethyl)-2-iodopyridine-3-acetic acid
4-Chloro-6-(difluoromethyl)-2-iodopyridine-3-acetic acid