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