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