2-Bromo-6-(difluoromethyl)-5-nitropyridine-3-carboxylic acid
2-Bromo-5-(difluoromethyl)-3-methylpyridine-6-carbonyl chloride
2-Bromo-6-(difluoromethyl)-4-nitropyridine-3-carboxylic acid
6-Bromo-4-(difluoromethyl)-2-methylpyridine-3-carbonyl chloride
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