4-(Aminomethyl)-2-cyano-5-fluoro-3-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-cyano-5-fluoro-4-(trifluoromethoxy)pyridine
5-Chloro-2-(chloromethyl)-3-fluoro-6-(trifluoromethoxy)pyridine
3-Chloro-2-(chloromethyl)-6-fluoro-4-(trifluoromethoxy)pyridine