2-Chloro-5-(difluoromethyl)-4-iodopyridine-3-sulfonamide
2-Chloro-4-(difluoromethyl)-5-iodopyridine-3-sulfonamide
5-Chloro-3-(difluoromethyl)-2-methoxy-4-nitropyridine
3-Chloro-2-(difluoromethyl)-5-methoxy-4-nitropyridine
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