2-(Difluoromethyl)-4-nitropyridine-5-sulfonamide
4-(Difluoromethyl)-2-(fluoromethyl)-6-nitropyridine
2-(Difluoromethyl)-6-nitropyridine-4-sulfonyl chloride
6-(Difluoromethyl)-3-(fluoromethyl)-2-nitropyridine
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