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