2-Chloro-4-cyano-5-(difluoromethyl)pyridine-3-methanol
3-Bromo-2-(difluoromethyl)-4-nitropyridine-6-sulfonyl chloride
2-Chloro-4-cyano-3-(difluoromethyl)pyridine-5-methanol
6-Bromo-2-(difluoromethyl)-3-nitropyridine-4-sulfonyl chloride
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