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