2-Hydroxy-6-nitro-3-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-(Chloromethyl)-6-fluoro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
6-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
5-(Chloromethyl)-2-fluoro-4-(trifluoromethoxy)-3-(trifluoromethyl)pyridine