5-Bromo-2-(difluoromethyl)-4-hydroxypyridine-3-sulfonyl chloride
3-Bromo-4-(difluoromethyl)-5-iodopyridine-2-sulfonamide
4-Bromo-2-(difluoromethyl)-5-hydroxypyridine-3-sulfonyl chloride
Ethyl 2-bromo-5-(difluoromethyl)-3-fluoropyridine-6-acetate
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