4-Cyano-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-acetic acid
2-Cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Hydroxy-5-iodo-2-(trifluoromethoxy)pyridine-3-methanol
5-Cyano-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid