6-Chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-carboxylic acid
3-Chloro-4-(chloromethyl)-6-iodo-2-(trifluoromethoxy)pyridine
3-Chloro-4-(chloromethyl)-2-iodo-6-(trifluoromethoxy)pyridine
3-Chloro-2-(chloromethyl)-6-iodo-4-(trifluoromethoxy)pyridine