6-Amino-2-(difluoromethyl)pyridine-3-carboxaldehyde
2-Bromo-6-(difluoromethyl)-3-iodopyridine
4-(Difluoromethyl)-5-methylpyridine-2-sulfonyl chloride
6-Amino-3-(difluoromethyl)pyridine-2-carboxaldehyde
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