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