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