Ethyl 4-fluoro-2-nitro-3-(trifluoromethoxy)pyridine-5-acetate
3-Fluoro-6-nitro-2-(trifluoromethoxy)pyridine-4-acetic acid
Ethyl 5-fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-acetate
5-Fluoro-2-nitro-4-(trifluoromethoxy)pyridine-3-acetic acid
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