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