2-Fluoro-5-(fluoromethyl)-3-methoxy-4-(trifluoromethoxy)pyridine
4-(Bromomethyl)-2-fluoro-5-methoxy-3-(trifluoromethoxy)pyridine
5-(Bromomethyl)-3-fluoro-2-methoxy-4-(trifluoromethoxy)pyridine
5-Fluoro-3-methoxy-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine