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