2-Cyano-5-(difluoromethyl)pyridine-3-acetonitrile
2-(Chloromethyl)-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid
3-(Difluoromethyl)-5-iodopyridine-2-acetonitrile
2-(Chloromethyl)-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid