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