2-Methoxy-6-nitro-5-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Methoxy-6-nitro-4-(trifluoromethoxy)pyridine-3-acetic acid
Methyl 5-(fluoromethyl)-4-methoxy-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-methoxy-2-nitro-5-(trifluoromethoxy)pyridine-3-acetate