2-Bromo-3-(difluoromethyl)-4-hydroxypyridine-6-sulfonamide
2-Bromo-4-(difluoromethyl)-3-iodopyridine-5-methanol
3-Bromo-6-(difluoromethyl)-2-hydroxypyridine-4-sulfonyl chloride
2-Bromo-3-(difluoromethyl)-6-iodopyridine-4-methanol
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