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