4-(Chloromethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-carboxaldehyde
3-(Fluoromethyl)-5-methoxy-6-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
4-(Chloromethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-carboxaldehyde
3-(Fluoromethyl)-5-methoxy-2-(trifluoromethoxy)-6-(trifluoromethyl)pyridine