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