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