3-Bromo-2-(bromomethyl)-4-(difluoromethyl)-6-methylpyridine
6-Bromo-2-(bromomethyl)-3-(difluoromethyl)-4-methylpyridine
4-Bromo-2-(chloromethyl)-5-(difluoromethyl)pyridine-3-carboxylic acid
4-Bromo-2-(chloromethyl)-3-(difluoromethyl)pyridine-5-carboxylic acid