4-(Chloromethyl)-2-iodo-6-(trifluoromethoxy)pyridine-3-carboxylic acid
4-(Chloromethyl)-2-methoxy-3-methyl-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-5-iodo-2-(trifluoromethoxy)pyridine-6-carboxylic acid
2-(Chloromethyl)-6-methoxy-5-methyl-3-(trifluoromethoxy)pyridine