2-(Difluoromethyl)-4-nitropyridine-3-carboxamide
4-(Difluoromethyl)-2-methylpyridine-3-carboxamide
4-(Difluoromethyl)-5-methylpyridine-2-carboxamide
3-(Difluoromethyl)-5-methylpyridine-4-carboxamide
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