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