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