2-Cyano-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid
4-Fluoro-2-methyl-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-(Difluoromethyl)-5-fluoro-2-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Cyano-6-(difluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid