3-(Bromomethyl)-2-cyano-5-methoxy-6-(trifluoromethoxy)pyridine
3-(Bromomethyl)-2-cyano-4-methoxy-5-(trifluoromethoxy)pyridine
6-(Bromomethyl)-2-cyano-4-methoxy-3-(trifluoromethoxy)pyridine
2-(Bromomethyl)-5-cyano-3-methoxy-4-(trifluoromethoxy)pyridine