3-Chloro-5-(difluoromethyl)-4-nitropyridine-2-carboxaldehyde
3-Chloro-4-(difluoromethyl)-2-iodopyridine-5-sulfonyl chloride
3-Chloro-4-(difluoromethyl)-5-nitropyridine-2-carboxaldehyde
3-Chloro-2-(difluoromethyl)-5-iodopyridine-6-sulfonyl chloride
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