3-Methoxy-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxylic acid
3-Methoxy-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxylic acid
5-Methoxy-4-nitro-2-(trifluoromethoxy)pyridine-3-acetic acid
2-Methoxy-3-(trifluoromethoxy)-6-(trifluoromethyl)pyridine-4-methanol