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