4-(Aminomethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-5-carboxylic acid
3-Methoxy-4-nitro-2-(trifluoromethoxy)pyridine-6-carboxylic acid
3-Methoxy-2-nitro-4-(trifluoromethoxy)pyridine-6-carboxylic acid
2-Methoxy-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxylic acid