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