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