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