3-Bromo-2-(chloromethyl)-5-(trifluoromethoxy)pyridine-6-acetonitrile
3-Bromo-2-(chloromethyl)-4-(trifluoromethoxy)pyridine-5-acetonitrile
6-Bromo-2-(chloromethyl)-4-(trifluoromethoxy)pyridine-3-acetonitrile
6-Bromo-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetic acid