4-(Bromomethyl)-3-iodo-2-(trifluoromethoxy)pyridine-5-acetic acid
3-(Bromomethyl)-2-iodo-4-(trifluoromethoxy)pyridine-5-acetic acid
2-(Bromomethyl)-5-methoxy-4-methyl-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-3-methoxy-5-methyl-4-(trifluoromethoxy)pyridine