Ethyl 4-iodo-5-nitro-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 4-iodo-3-nitro-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 4-iodo-6-nitro-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 4-iodo-2-nitro-3-(trifluoromethoxy)pyridine-5-acetate
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