5-Bromo-2-(chloromethyl)-4-cyano-3-(trifluoromethoxy)pyridine
3-Amino-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-acetonitrile
4-Bromo-3-cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine
4-Bromo-2-cyano-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine