3-Amino-4-(difluoromethyl)-5-iodo-2-methoxypyridine
3-Amino-6-cyano-2-(difluoromethyl)pyridine-5-carboxylic acid
5-Amino-2-cyano-3-(difluoromethyl)pyridine-6-carboxylic acid
5-Amino-2-(difluoromethyl)-3-iodopyridine-4-acetonitrile
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