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