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