2-Bromo-3-(difluoromethyl)-6-iodo-4-methoxypyridine
2-Bromo-3-(difluoromethyl)-5-iodo-4-methoxypyridine
4-Bromo-6-(difluoromethyl)-3-fluoropyridine-2-sulfonyl chloride
4-Bromo-2-(difluoromethyl)-3-fluoropyridine-6-sulfonyl chloride
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