6-Bromo-4-(difluoromethyl)-3-methylpyridine-2-carboxylic acid
4-Bromo-6-(difluoromethyl)-2-iodopyridine-3-sulfonamide
3-Bromo-5-(difluoromethyl)-4-iodopyridine-2-sulfonamide
5-Bromo-2-(difluoromethyl)-4-hydroxypyridine-3-sulfonyl chloride
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