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