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