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