2-Bromo-3-(chloromethyl)-6-(difluoromethyl)pyridine-4-carboxaldehyde
2-Bromo-3-(chloromethyl)-5-(difluoromethyl)pyridine-4-carboxaldehyde
3-Bromo-2-(difluoromethyl)-5-methoxypyridine-6-sulfonyl chloride
3-Bromo-2-(difluoromethyl)-4-methoxypyridine-6-sulfonyl chloride