4-Chloro-5-cyano-2-(difluoromethyl)-3-iodopyridine
6-Chloro-3-cyano-2-(difluoromethyl)pyridine-4-acetic acid
4-Chloro-5-cyano-3-(difluoromethyl)-2-iodopyridine
2-Chloro-5-cyano-4-(difluoromethyl)pyridine-3-acetic acid
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