Ethyl 6-(difluoromethyl)-3-fluoro-4-(trifluoromethyl)pyridine-2-carboxylate
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