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