5-Methoxy-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonamide
4-(Aminomethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-3-methanol
4-Methoxy-3-nitro-6-(trifluoromethoxy)pyridine-2-sulfonamide
5-(Aminomethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-4-methanol