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