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