2-(Chloromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine-5-carboxylic acid
3-(Fluoromethyl)-2-hydroxy-4-methoxy-5-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-hydroxy-5-methoxy-3-(trifluoromethoxy)pyridine
4-Hydroxy-3-methoxy-2-(trifluoromethoxy)-5-(trifluoromethyl)pyridine