3-(Bromomethyl)-4-hydroxy-2-methyl-6-(trifluoromethoxy)pyridine
4-(Chloromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-6-carboxylic acid
2-(Bromomethyl)-6-hydroxy-5-methyl-3-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine-6-carboxylic acid