2-Chloro-6-(chloromethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine
4-Chloro-6-cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine
4-Chloro-2-cyano-5-(difluoromethyl)-3-(trifluoromethoxy)pyridine
6-Chloro-3-(chloromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine