Methyl 3-cyano-4-nitro-6-(trifluoromethoxy)pyridine-2-acetate
3-(Aminomethyl)-6-cyano-2-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 3-cyano-2-nitro-6-(trifluoromethoxy)pyridine-4-acetate
Methyl 3-cyano-2-nitro-4-(trifluoromethoxy)pyridine-6-acetate