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