3-Bromo-5-(bromomethyl)-2-(difluoromethyl)pyridine-4-acetic acid
4-Bromo-6-(bromomethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine
3-Bromo-4-(bromomethyl)-6-(difluoromethyl)pyridine-2-acetic acid
4-Bromo-2-(bromomethyl)-3-(difluoromethyl)-6-(trifluoromethyl)pyridine