2-Bromo-5-(difluoromethyl)-3-nitropyridine-4-carboxylic acid
2-Bromo-4-(difluoromethyl)-6-nitropyridine-3-carboxylic acid
5-Bromo-2-(difluoromethyl)-3-iodo-6-methoxypyridine
2-Bromo-4-(difluoromethyl)-5-nitropyridine-3-carboxylic acid
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