4-(Difluoromethyl)-5-methylpyridine-2-carboxaldehyde
5-Cyano-2-(difluoromethyl)-3-iodopyridine
4-(Difluoromethyl)-2-methylpyridine-6-carboxaldehyde
4-Cyano-3-(difluoromethyl)-2-iodopyridine
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