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