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