2-Cyano-3-fluoro-4-nitro-5-(trifluoromethoxy)pyridine
2-Chloro-4-methoxy-6-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Chloro-4-methoxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Chloro-3-methoxy-6-(trifluoromethoxy)pyridine-4-carboxylic acid