5-(Difluoromethyl)-3-fluoro-2-(trifluoromethyl)pyridine-4-carboxaldehyde
5-(Difluoromethyl)-3-hydroxy-4-iodopyridine-2-carboxylic acid
2-(Difluoromethyl)-6-fluoro-4-(trifluoromethyl)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-3-hydroxy-5-iodopyridine-6-carboxylic acid