4-(Difluoromethyl)-2-nitropyridine-5-sulfonamide
3-(Difluoromethyl)-5-nitropyridine-2-carbonyl chloride
3-(Difluoromethyl)-5-nitropyridine-4-sulfonamide
3-(Difluoromethyl)-4-nitropyridine-2-carbonyl chloride
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