2-(Difluoromethyl)-5-iodo-6-nitropyridine-3-carboxylic acid
3-(Difluoromethyl)-6-iodo-2-nitropyridine-4-carboxaldehyde
2-(Bromomethyl)-3-(difluoromethyl)-4-iodopyridine-5-acetic acid
4-(Chloromethyl)-2-(difluoromethyl)-6-iodopyridine-3-acetic acid
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