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