4-Methoxy-5-nitro-3-(trifluoromethoxy)pyridine-2-carboxamide
3-Methoxy-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxamide
4-Methoxy-3-nitro-2-(trifluoromethoxy)pyridine-6-carboxamide
4-Methoxy-6-nitro-2-(trifluoromethoxy)pyridine-3-carboxamide
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