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