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