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