3-Hydroxy-2-methoxy-4-nitro-6-(trifluoromethoxy)pyridine
2-(Fluoromethyl)-3-hydroxy-6-methoxy-4-(trifluoromethoxy)pyridine
3-(Bromomethyl)-4-hydroxy-2-methoxy-6-(trifluoromethoxy)pyridine
3-(Chloromethyl)-4-hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine