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