4-Methoxy-5-nitro-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-(Bromomethyl)-2-iodo-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
4-Methoxy-3-nitro-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
4-(Bromomethyl)-5-iodo-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine