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