3-Bromo-2-(bromomethyl)-5-(difluoromethyl)pyridine-4-carboxylic acid
3-Bromo-2-(bromomethyl)-4-(difluoromethyl)pyridine-5-carboxylic acid
5-Chloro-4-(difluoromethyl)-2-fluoropyridine-3-acetonitrile
5-Chloro-4-(difluoromethyl)-3-fluoropyridine-2-acetonitrile