Methyl 2-hydroxy-6-nitro-3-(trifluoromethoxy)pyridine-4-acetate
Methyl 6-hydroxy-3-nitro-4-(trifluoromethoxy)pyridine-2-acetate
2-(Chloromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-3-carboxylic acid
Methyl 5-fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-carboxylate