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