3-Fluoro-6-methoxy-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Fluoro-2-methoxy-3-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Cyano-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-6-acetonitrile
4-Fluoro-5-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylic acid