5-Bromo-2-(chloromethyl)-4-(difluoromethyl)pyridine-3-acetic acid
5-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-4-acetic acid
2-Bromo-5-(difluoromethyl)-3-methylpyridine-6-carboxaldehyde
4-Bromo-3-(chloromethyl)-6-(difluoromethyl)pyridine-2-acetic acid