[3,3'-Bipyridine]-6,6'-dicarboxaldehyde
2-(Chloromethyl)-4-(difluoromethyl)-5-iodo-3-methoxypyridine
3-(Bromomethyl)-2,6-dichloro-4-(difluoromethyl)pyridine
3-Chloro-2-iodopyridine-4-sulfonyl chloride
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