4-(Chloromethyl)-2-methoxy-5-(trifluoromethoxy)pyridine-3-carboxaldehyde
5-(Chloromethyl)-3-methoxy-2-(trifluoromethoxy)pyridine-4-carboxaldehyde
3-Methyl-4-nitro-2-(trifluoromethoxy)pyridine-5-carbonyl chloride
3-(Chloromethyl)-5-methoxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde