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