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