3-(Chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-4-acetic acid
4-(Chloromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-3-acetic acid
6-(Chloromethyl)-2-methyl-3-(trifluoromethoxy)pyridine-4-acetic acid
4-Iodo-2-(trifluoromethoxy)pyridine-5-carboxylic acid