2-Cyano-5-(difluoromethyl)-3-iodopyridine-4-carboxylic acid
6-Cyano-4-(difluoromethyl)-3-iodopyridine-2-carboxylic acid
3-Cyano-2-(difluoromethyl)-4-methoxypyridine-6-carboxylic acid
5-Cyano-4-(difluoromethyl)-3-iodopyridine-2-carboxaldehyde
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