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