2-Chloro-4-iodo-5-nitro-3-(trifluoromethoxy)pyridine
3-Chloro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylic acid
6-Chloro-4-fluoro-2-iodo-3-(trifluoromethoxy)pyridine
5-Chloro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylic acid