2-(Chloromethyl)-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetic acid
3-(Bromomethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetonitrile
2-(Chloromethyl)-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetic acid
3-(Bromomethyl)-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetonitrile