5-(Difluoromethyl)-2-methoxy-4-nitropyridine-3-carboxamide
5-(Difluoromethyl)-2-methoxy-3-nitropyridine-6-carboxamide
5-(Difluoromethyl)-2-methoxy-3-nitropyridine-4-carboxamide
4-(Difluoromethyl)-5-methoxy-2-nitropyridine-3-carboxamide
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