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