4-Chloro-2-cyano-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
4-Chloro-5-fluoro-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
5-Chloro-3-cyano-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-Chloro-3-fluoro-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine