Methyl 4-bromo-2-nitro-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-bromo-4-nitro-5-(trifluoromethoxy)pyridine-2-acetate
Methyl 5-bromo-3-nitro-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 3-bromo-5-nitro-6-(trifluoromethoxy)pyridine-2-acetate
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