3-Cyano-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-5-acetic acid
4-(Chloromethyl)-3-fluoro-6-methyl-2-(trifluoromethoxy)pyridine
3-Cyano-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-4-acetic acid
6-Cyano-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-4-acetic acid