4-(Chloromethyl)-3-(difluoromethyl)pyridine-5-carboxaldehyde
2-(Difluoromethyl)-4-iodopyridine-3-sulfonyl chloride
2-(Difluoromethyl)-3-iodopyridine-4-sulfonyl chloride
3-(Chloromethyl)-4-(difluoromethyl)pyridine-5-carboxaldehyde
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