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