3-Methoxy-6-nitro-2-(trifluoromethoxy)pyridine-4-carboxylic acid
4-(Chloromethyl)-3-methoxy-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine
5-Methoxy-2-nitro-4-(trifluoromethoxy)pyridine-3-carboxylic acid
5-(Bromomethyl)-2-methoxy-4-methyl-3-(trifluoromethoxy)pyridine