3-(Difluoromethyl)-6-fluoro-2-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-fluoro-3-(trifluoromethyl)pyridine
5-(Difluoromethyl)-2-fluoropyridine-4-carboxaldehyde
4-(Difluoromethyl)-5-fluoropyridine-2-carboxaldehyde
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