3-Cyano-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carboxylic acid
2-Cyano-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-3-methanol
3-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
3-Cyano-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetonitrile