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