Methyl 3-hydroxy-2-iodo-4-(trifluoromethoxy)pyridine-6-carboxylate
2-(Bromomethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 2-hydroxy-6-iodo-5-(trifluoromethoxy)pyridine-3-carboxylate
2-(Bromomethyl)-3-hydroxy-5-(trifluoromethoxy)pyridine-4-carboxylic acid