3-Methoxy-4-nitro-6-(trifluoromethoxy)pyridine-2-carbonyl chloride
3-Methoxy-2-nitro-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
2-(Fluoromethyl)-3-methoxy-5-nitro-4-(trifluoromethoxy)pyridine
3-(Chloromethyl)-6-methoxy-2-nitro-4-(trifluoromethoxy)pyridine