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