3-Chloro-2-(pyridin-4-yl)isonicotinaldehyde
3,6-Di(pyridin-4-yl)picolinaldehyde
4-Cyano-2-(difluoromethyl)-6-hydroxy-3-methylpyridine
3-Cyano-4-(difluoromethyl)-6-hydroxy-2-methylpyridine
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