3-(Difluoromethyl)-4-methoxy-6-nitro-2-(trifluoromethoxy)pyridine
6-(Chloromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
2-(Chloromethyl)-5-methoxy-3-(trifluoromethoxy)pyridine-6-carboxaldehyde
2-(Chloromethyl)-4-methoxy-6-(trifluoromethoxy)pyridine-3-carboxaldehyde