3-Methyl-2-nitro-6-(trifluoromethoxy)pyridine-5-acetonitrile
3-(Fluoromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-4-acetic acid
3-Methyl-2-nitro-5-(trifluoromethoxy)pyridine-4-acetonitrile
6-(Fluoromethyl)-2-methoxy-3-(trifluoromethoxy)pyridine-4-acetic acid