Ethyl 3-(chloromethyl)-6-cyano-2-(trifluoromethoxy)pyridine-4-acetate
3-(Chloromethyl)-5-cyano-2-(trifluoromethoxy)pyridine-6-methanol
3-(Chloromethyl)-4-cyano-6-(trifluoromethoxy)pyridine-2-methanol
3-(Chloromethyl)-4-cyano-2-(trifluoromethoxy)pyridine-6-methanol