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