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