Methyl 3-hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-2-acetate
3-Hydroxy-6-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
Methyl 5-hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate
4-Hydroxy-5-methoxy-2-nitro-3-(trifluoromethoxy)pyridine
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