4-Cyano-2-fluoro-3-methoxy-6-(trifluoromethoxy)pyridine
4-Chloro-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid
2-Cyano-3-iodo-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-Chloro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid