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