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