3-Bromo-4-(difluoromethyl)-6-methylpyridine-2-sulfonyl chloride
3-Bromo-4-(difluoromethyl)-5-methylpyridine-2-sulfonyl chloride
4-Bromo-3-(difluoromethyl)-2-methyl-6-nitropyridine
3-Bromo-4-(difluoromethyl)-2-methylpyridine-5-sulfonyl chloride
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