2-(Difluoromethyl)-6-fluoro-5-(trifluoromethoxy)pyridine-3-acetonitrile
2-(Chloromethyl)-4-fluoro-5-(trifluoromethoxy)pyridine-3-acetic acid
6-(Difluoromethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-4-acetonitrile
2-(Chloromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine-5-acetic acid