5-Bromo-2-(difluoromethyl)-3-hydroxypyridine-6-sulfonamide
3-Bromo-6-(difluoromethyl)-4-fluoropyridine-2-carbonyl chloride
5-Bromo-3-(difluoromethyl)-4-fluoropyridine-2-sulfonamide
3-Bromo-5-(difluoromethyl)-2-iodo-6-methoxypyridine
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