3-Chloro-4-nitro-6-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-Chloro-2-fluoro-6-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Chloro-3-(chloromethyl)-6-fluoro-5-(trifluoromethoxy)pyridine
4-Chloro-2-fluoro-3-(trifluoromethoxy)pyridine-6-carboxylic acid