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