4-(Fluoromethyl)-3-iodo-2-(trifluoromethoxy)pyridine-5-acetic acid
4-(Fluoromethyl)-6-iodo-3-(trifluoromethoxy)pyridine-2-acetic acid
6-(Chloromethyl)-2-iodo-4-methyl-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-6-iodo-3-methyl-4-(trifluoromethoxy)pyridine