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