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