Ethyl 3-hydroxy-4-nitro-5-(trifluoromethoxy)pyridine-2-acetate
6-Fluoro-2-(fluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetic acid
3-Hydroxy-2-methyl-4-(trifluoromethoxy)pyridine-5-acetonitrile
2-Fluoro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-acetic acid