Methyl 3-fluoro-2-(fluoromethyl)-6-(trifluoromethoxy)pyridine-5-carboxylate
3-Fluoro-2-nitro-5-(trifluoromethoxy)pyridine-6-acetic acid
3-Fluoro-2-nitro-4-(trifluoromethoxy)pyridine-5-acetic acid
6-Fluoro-2-nitro-4-(trifluoromethoxy)pyridine-3-acetic acid