5-Chloro-3-iodo-4-(trifluoromethoxy)pyridine-2-acetic acid
3-Chloro-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-6-acetic acid
5-Chloro-4-iodo-3-(trifluoromethoxy)pyridine-2-acetic acid
3-Chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetic acid