Ethyl 2-bromo-6-(difluoromethyl)-3-methoxypyridine-4-carboxylate
5-Bromo-2-(difluoromethyl)-4-nitropyridine-3-acetonitrile
4-Bromo-3-(difluoromethyl)-5-nitropyridine-2-acetonitrile
3-Bromo-6-(difluoromethyl)-2-methoxypyridine-4-acetic acid
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