Methyl 4-methoxy-2-nitro-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 4-methoxy-5-methyl-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-methoxy-5-nitro-6-(trifluoromethoxy)pyridine-2-acetate
2-(Fluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylic acid