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