3-Chloro-5-fluoro-6-(fluoromethyl)-2-(trifluoromethoxy)pyridine
3-Chloro-2-fluoro-6-(fluoromethyl)-4-(trifluoromethoxy)pyridine
3-Chloro-6-(chloromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine
3-Chloro-6-(difluoromethyl)-2-fluoro-5-(trifluoromethoxy)pyridine