Methyl 2-hydroxy-5-nitro-3-(trifluoromethoxy)pyridine-6-acetate
3-Fluoro-2-nitro-6-(trifluoromethoxy)pyridine-5-acetonitrile
Methyl 3-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 6-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-3-carboxylate