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