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