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