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