2-Cyano-4-(fluoromethyl)-6-methoxy-3-(trifluoromethoxy)pyridine
2-Cyano-3-(fluoromethyl)-4-methoxy-6-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-cyano-3-methoxy-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-4-cyano-2-methoxy-6-(trifluoromethoxy)pyridine