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