Methyl 2-bromo-4-(chloromethyl)-3-(difluoromethyl)pyridine-5-acetate
3-Bromo-4-(difluoromethyl)-2-methylpyridine-6-carboxaldehyde
3-Bromo-2-(difluoromethyl)-6-methylpyridine-5-carboxaldehyde
3-Bromo-2-(difluoromethyl)-5-methylpyridine-6-carboxaldehyde