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