2-Cyano-4-(difluoromethyl)pyridine-3-sulfonyl chloride
4-(Difluoromethyl)-2-methylpyridine-3-sulfonamide
2-(Difluoromethyl)-4-nitropyridine-5-sulfonamide
4-(Difluoromethyl)-2-(fluoromethyl)-6-nitropyridine
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